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Article

Innovative Solutions and Challenges for the Improvement of Storage Processes

by
Dalia Perkumienė
,
Kristina Ratautaitė
and
Rasa Pranskūnienė
*
Department of Business and Rural Development Management, Faculty of Bioeconomy Development, Agriculture Academy, Vytautas Magnus University, 53361 Kaunas, Lithuania
*
Author to whom correspondence should be addressed.
Sustainability 2022, 14(17), 10616; https://doi.org/10.3390/su141710616
Submission received: 20 July 2022 / Revised: 16 August 2022 / Accepted: 22 August 2022 / Published: 25 August 2022

Abstract

:
Innovative solutions are very important for the warehouse because, with their help, it is possible to ensure a more efficient connection between suppliers and consumers throughout the supply chain. This paper aims to search out and offer innovative solutions for the improvement of the storage processes in a LMC (logistics manufacturing company). The task of warehousing processes is to efficiently interconnect a complex set of operations. The proper logistics organization of warehouse processes ensures a competitive advantage for the entire company. Considering the problem identified in the company, this article raises a research question: what innovative solutions can be applied for the improvement of the storage processes? Summarizing the results of the research, it can be concluded that solving the problems of LMC warehousing processes and implementing improvements requires staff training, specialist consultations, and also a complex of innovative solutions such as: using racking systems with a racking truck, a warehouse management system with barcodes, a raw material management program, application Pick by Voice system, MRP and ERP systems, and ABC, JIT, and the Lean methods.

1. Introduction

This paper focuses on innovative solutions within the warehousing sector. According to Zahra and Covin [1], innovation is widely considered as the life blood of corporate survival and growth. Baregheh et al. [2] argue that innovation is recognized to play a central role in creating value and sustaining competitive advantage. Damanpour [3] notices that innovation is tightly coupled to change, as organizations use innovation as a tool in order to influence an environment or due to their changing environments.
Innovative solutions are very important for the warehouse as they connect suppliers and consumers throughout the supply chain. An important task of warehouse logistics is to meet the demand needs to the maximum, considering the resources available to the company. The growth of the turnover of Lithuanian manufacturing companies highlights the need for warehousing and efficient warehousing processes in the country. The task of warehousing processes is to efficiently interconnect a complex set of operations. Proper logistics organization of warehouse processes ensures a competitive advantage for the entire company.
On warehouse processes, various researchers [4,5,6] argue that this is a set of actions related to the receipt, storage, collection, and shipment of goods. The implementation of warehouse processes depends on the main tasks of the warehouse, the structure and size of customer orders, and the storage location. The scientific literature highlights the importance of efficient warehouse process management, which is much talked about [7,8,9]. As one of the most important logistics goals in warehousing processes is to ensure that the right product is found in the right quantity, at the right time, and intact, the efficient management of warehouse processes is essential to ensure that all the listed criteria are met, as transportation and distribution processes are a continuation of warehouse processes [7]. It should be noted that the use of the company’s warehouse management tools helps to achieve high profitability of warehouse operations, as well as long-term competitive advantages in sales and development [8]. Joint and coordinated work at all levels of management is needed to solve logistics problems and develop its capabilities [9]. The scientific literature also updates the rational organization of warehousing processes: because the process of warehouse management is rationally organized, guarantees stock security, speed of operations, reduces costs, and provides a high level of logistics services [8]. As the improvement of process organization ensures fast availability of results using existing equipment [10], all reorganizations, investments, and technological changes in logistics facilities should be comprehensively analyzed [3]. Researchers highlight the essence of innovation, the implementation of technology in warehousing processes, and its importance, highlighting the fact that scientific and technical progress in warehouse logistics and innovation achievements are very important in increasing the productivity of warehouse operations [11]. In the modern world, the trend of warehouse automation is an important and inevitable part of a company’s development [4]; the use of innovative solutions by companies significantly increases the level of development in both warehousing and other logistics solutions of the company [9]. Technology implementation is required for companies with intensive turnover processes [12] and needs to be introduced to increase the efficiency of the warehouse [8].
Thus, the aim of the article is to search out and offer LMCs innovative solutions for the improvement of the storage processes.
The analysis of the scientific literature on the research object shows that the issues related to the innovative solutions for the improvement of the storage processes are relatively rarely discussed. Research results are usually focused on the warehouse process [3] or on warehouse logistics [5,8,11]. Despite the variety of research in this field, it still lacks comprehensive studies on innovative solutions for the improvement of the storage processes. Considering the problem identified in the analyzed company, the research question can be raised; what innovative solutions can be used for the improvement of the storage processes? The study provides an opportunity to reveal possible innovative solutions for the improvement of the storage processes.
The work is organized as follows. In further sections the paper presents a literature review, materials and methods, discussion, and conclusions about the analyzed question.

2. Literature Review

The theoretical background of this study covers the concepts and theories for seeking deeper knowledge about supply chain management and its integration with sustainability. In addition, the major objective of this theoretical framework is to have a basis for the analysis and to support key findings.

2.1. The Concept of Warehousing Logistics

To study warehousing processes, first of all, it is expedient to analyze the essence of warehousing logistics and its importance. Therefore, the first table presents the concepts of warehousing logistics and their authors (see Table 1).
Table 1 shows that warehousing is an important part of logistics integration, and its absence in the logistics system is unthinkable as many of the related activities would be impossible. Warehousing, which is mainly carried out on storage premises, plays an important role in the logistics system and cannot be explained by a single definition. For this reason, several authors define warehouses in different ways, emphasizing their importance from their point of view. Despite the differences, opinions can be combined into the fact that a warehouse is primarily a place where goods are received, delivered, stored, collected, packaged, shipped, sequenced, and documented [13,14,15,37].
Warehousing is a dynamic process that is also affected by ever-changing factors outside the company, e.g., relocation of production to countries with cheaper labor and various technological and organizational requirements of customers [20,21]. Warehousing is also a purposeful activity in the warehouse, which ensures the necessary flow of production processes and consumption; due to their technical nature, warehouses are complex facilities that allow this activity to be carried out [15]. Therefore, each author provided a definition of storage according to the direction examined in his work.
Most authors [14,16,18,19,22,24] stress that warehousing plays an important role in modern supply chains and enterprises. Karim et al. [16] note that expanding globalization, advances in the global economy, and evolving consumer orders have led to increased demand for logistics as well as warehousing services. The role of warehouses in the supply chain is very important as they contribute to the storage of goods in time for production until the goods are delivered to consumers on demand. In a highly competitive environment, a warehouse is not just a storage location; it also manages and provides value-added services [16,38]. Warehouses play an important role in matching product demand with supply at different stages of the supply chain [38]. Karim et al. [16] also indicate that warehousing is integral to four different supply chain processes: supply/inbound logistics, processing/manufacturing, outbound/distribution, and reverse logistics [16].
Efficient warehousing in the supply chain helps shorten time and offers value-added processes. In terms of production and purchasing, economies of scale are achieved, and transportation costs are reduced through product consolidation [10]. Appiah et al. [32] singled out that warehouses must be designed and operated according to the specific requirements of the entire supply chain. It is therefore justified if they are part of the cheapest supply chain that meets the level of service to meet customer needs [32]. However, in practice, due to the nature of the premises, staff, and equipment required, warehouses are often among the most expensive elements in the supply chain, therefore, their efficiency is crucial in terms of prices and services. Due to the wrong approach to warehousing activities, many companies suffer significant losses [17,32].
Mubarik et al. [13] and Dieu Ho et al. [25] also emphasize the importance of warehousing not only in the supply chain but also in customer service. The supply chain involves the purchase of materials, production of products in one or more factories, dispatch to warehouses for storage, and finally delivery to the end user. Storage has a major impact on the supply chain, as products must be stored until they are transported to end users; the warehouse helps to achieve this important goal in the supply chain. There are several main functions of a warehouse: one of the key functions is to reduce transportation costs by consolidating production; second, to achieve economy through purchasing and production; third, is the provision of added value in the processing of products. Mubarik et al. [13] and Dieu Ho et al. [25] argue that warehousing faces the need to integrate processes that provide added value to meet customer needs, as has been mentioned by other authors cited in this paper. Goods are delivered to customers because the warehouse acts as an intermediary that provides services between producers and end users, so the function of warehouses is to reduce delivery time.
According to Yener and Yazgan [39], the warehouse acts as a source of supply for customers [13]. Although warehouses were previously viewed negatively due to high costs, they are now a strategic element throughout the supply chain [25]. It is important to mention that supply chain management is becoming an important issue in many companies around the world. This includes the interests of suppliers around the world as well as a focus on the local and international consumer [18].
Warehouses play an important role in matching the demand and supply of products in different areas of the supply chain. Without warehousing, innovative solution improvements, supply chain design and logistics are inadequate, so it is important to understand the key principles of warehouse operations that play an important role in improving operational efficiency and improving customer service levels [25].
Many authors discuss the importance of customer service in warehousing: the role of warehousing is changing to increase customer service and companies adapt value propositions [10]; the key to the success of any supply chain is to understand and meet customer needs with on-time product delivery, which can be obtained by eliminating non-value-added activities in warehouse processes [22]. Customers in the supply chains become more complex and powerful due to the presence and availability of different brands, which makes the unavailability of one brand lead customers to another brand. Therefore, it is essential for companies to maintain an efficient delivery system and a competitive advantage over other brands—as this has a significant impact on warehousing, ensuring products are stored and shipped to reach the customer on time [40].
In the last few years, companies in many countries have faced high-cost pressures in industries leading to improvements in logistics processes, including warehousing, to reduce operating costs and satisfy demanding customers with fast delivery [18,25]. Warehouses perform important functions by increasing the efficiency of the logistics system and improving customer service [15], helping the company to improve the quality of services provided and achieving higher levels of customer satisfaction, while at the same time reducing storage costs [37]. Warehousing also plays a key role in global logistics systems to ensure a high level of customer service [14]. An improved warehousing system performance can contribute to a higher level of customer service and efficiently affects the entire supply chain [17], assisting companies to customize their services to customers and achieve a competitive advantage [39].
It should be noted that the competitive environment in warehousing activities has a significant impact. According to Aleksandrova and Munshi [8], the analysis of the competitive environment helps the warehouse to achieve high performance, as well as to realize and develop long-term competitive advantages. The analysis of warehouse performance indicators and the dynamics of their changes are needed to assess the state of warehouse performance, determine the specifics of the problems in the warehouse, and assess their significance [8]. Lorenc and Lerher [41] singled out time and cost as the most important factors influencing warehouse competitiveness.
To summarize the thoughts of the authors, it can be concluded that warehouses are no longer considered a simple storage place, but is instead a dynamic place. Warehousing is an important element of a distribution activity and should not be a weak part of the supply chain. The warehouse is viewed from different angles by various authors interested in the field. There is no definition that covers all aspects of storage. Therefore, Mohamed et al. [14] propose a broader definition: warehousing is a process that groups all activities including the design of a warehouse; defining the measures necessary for its operation; the definition of the various operations to be carried out, and the management of the warehouse. Storage performance research is very important for companies because it has a direct impact on supply chain performance [14].

2.2. The Role of Storage Processes

It has been observed that the number of operations and their names vary in the various works of scientists. Researchers such as Habazin et al. [34] distinguish the following main warehouse processes: receiving, placing, internal replenishment, order collection, storage and sorting, packing, shipping, and shipping. Receipt and storage are treated as inbound processes and others as outbound processes. Authors Olaku et al. [30] write that warehousing processes include activities such as receiving, postponing, storing, collecting, and shipping. Gutelius and Theodore [42] present in their work: acceptance (unloading and preparation of goods for storage or reloading), postponement (transfer of goods to another place in the warehouse), storage (storage of goods as long as they are needed), picking (selection and collection of orders by product, pallet or final assembly, marking, packaging), and shipment (preparation of orders for shipment and loading of goods). Dieu Ho et al. [25] state that the warehouse process has four main activities: receipt, storage, assembly, and shipping. Summarizing the authors’ positions on the number of processes in a warehousing system, it can be concluded that there are still four main processes in warehousing in manufacturing plants: receipt, storage, assembly, and shipping [25]. The processes can be categorized into operations and can be further detailed, as the work of the analyzed scientists has shown. Four main processes were selected for the formation of the storage process model and 10 examples are given.
Using the warehouse process model presented in Figure 1, it is appropriate to describe each process in detail in order to highlight the thoughts of other researchers on this topic.
The first storage process is the acceptance of products, raw materials, and other materials. According to Habazin et al. [34], this process does not take as much time as the order assembly, which is shown below, but it is just as relevant because the incorrect placement of the production of raw materials can lead to further process errors. Usually, the warehouse staff is informed about the acceptance process in advance so that they can prepare and plan operations. Researchers [30,43,44] add that on arrival, unloading begins, followed by accurate information in the documents. If labeling is required, this process takes place before the goods are placed. The location of the production in each warehouse must be determined in advance. If such a place does not exist, but it is known that the raw materials and products will arrive, they must be marked and placed in a temporary place and it is essential that the delivery is compatible with the unloading equipment in the warehouse, otherwise, the need for additional equipment arises [34]. Authors Dieu Ho et al. [25] note that the warehouse needs to be organized into different reception departments that will be stocked before and after receipt. Therefore, the acquisition process must be completed as soon as possible so as not to use space and renovate new areas. Habazin et al. [34] noticed that the adoption process is only 10 percent of the operating costs in a standard warehouse.
The second storage process is the storage of products, raw materials, and other materials. Habazin et al. [34] state that each unit of stock storage in a warehouse has its own predetermined location. Ref. [25] clarify that there are not only fixed storage locations but also volatile, variable ones. Giannikas et al. [43] note that storage must be organized in such a way that the available space is fully utilized. This process is important because it can shorten the selection time and ultimately reduce the overall duration of outgoing processes. Once the product is in place, the location of the unit should be scanned and recorded [30]; such information will be useful when collecting orders. The storage process may require a larger number of workers, as production usually needs to be moved over significant distances to their storage location. As a result, the storage process accounts for approximately 15 percent of the cost of warehouse operation [34].
The third warehousing process is order collection. Dieu Ho et al. [25] emphasized that the main activity in this process is to make sure that the right product and the right quantity are selected. All ordered goods are then packed in one or more packages onto pallets, and must be ready for shipment. Habazin et al. [34] discussed the order collection process involved in selecting and ordering a specified quantity through an order that goes through operations such as lifting, moving, assembling, placing, and packing. Order collection can be manual or automatic. When picking up an order manually, the voter collects the items from their locations and then transports them to the packing location. In the case of automatic collection, that is, in automated storage and retrieval systems, the system scans a certain number of cargo units and assists in a collection station. The collector accepts the products to order, and the remaining units are moved to their storage location [34]. Škerlič and Muha [20,21] point out that order collection is the most time-consuming process of internal logistics, accounting for more than 50 percent of total storage costs. According to Chiang et al. [24], Dauod et al. [45], and Dieu Ho et al. [25], order collection accounts account for 55 percent of the total cost of warehousing, which shows the role of order picking in warehousing. In analyzing, Kusrini et al. [28] also clarified that order picking is one of the most time-consuming warehousing processes and that, in many cases, it is the case that it accounts for more than 50 percent of warehouse operating costs.
The fourth warehousing process is the dispatch of the order. The dispatch process is the final process between warehouse processes. After preparation for shipment, the first step is loading into the vehicle. This process is not as complex and usually involves less manpower than the processes mentioned earlier. Depending on the warehouse information system, management can be done manually or using a scanner [34].
Summarizing all four warehousing processes and their importance, it can be said that the proper functioning of warehousing processes is very important for the company, its performance improvement, as well as the overall logistics supply chain. The order picking process stood out from the four processes, which, as noted by many of the authors cited, is the most expensive and complex in the entire warehousing process. The order collection process will be discussed further in the context of existing business problems in warehousing logistics processes.

2.3. Problems of Warehousing Logistics Processes

Table 2 shows identified problems in warehousing logistics processes. Some of the problems are repetitive but presented in separate groups, as the authors’ solutions for solving those problems differ and each author interprets their findings using his or her own research methods and scientific insights. It should be noted that the main problem identified was the warehouse order collection process, which clearly stood out as a problem that was researched and mentioned by the authors of the analyzed articles. The second problem is the inefficient use of warehouse space. This problem also affects the problem of lack of warehouse space because in many cases, there is not enough space in the warehouse and the warehouse space is usually 100% unused. The participation of people, i.e., employees. in work processes, creates problems such as their inadequate work. In times of global innovation, it is no surprise that automation accounts for only 20 percent, which is already a problem. However, automation also causes other problems with complex tasks. A very important problem in a company arises when it concerns customers, as dissatisfied customers who do not receive orders on time can lead to significant losses for the company.
The storage area under analysis is quite risky in terms of security, which is why there are also several problems here. Solutions for the improvement of warehousing logistics processes in a manufacturing company based on theoretical insights. In summary, solutions for warehousing logistics processes are primarily related to warehouse order collection time and route optimization, efficient warehousing utilization, proper planning, and warehousing capacity utilization. Equally important are the use of appropriate functional equipment and staff training.
The scientific literature presents various solutions for the problem solving of warehousing logistics processes, but the main ones are related to modern technologies and methods. Figure 2 presents a model of innovative solutions for the improvement of warehousing logistics processes, which lists the technological and methodological solutions for solving problems in a manufacturing company.
It has been established that the most suitable innovative solutions methods for warehousing logistics process-improvement solutions in a manufacturing company are the ABC (activity-based costing) method [58], JIT (the just-in-time) method and the lean method. As for the systems to solve complex company problems, these would be WMS (Warehouse Management System), pick by voice system (voice picking system), MRP (material requirement planning) and ERP (enterprise resource planning) systems, selected RFID (radio frequency identification) and barcode technologies (a printed series of parallel bars or lines of varying width that is used for entering data into a computer system). The last tools, without which help in warehousing is not possible, are racks, rack loaders, and other equipment. Summarizing the theoretical part, it can be stated that today’s warehousing is not only a storage place but also an integral part of the logistics system. The operation of a warehouse is influenced by the number and variety of goods, and how efficiently that operation will be carried out depends on the correct and systematic operation of storage processes. Warehousing is an important element in the supply chain, as it connects suppliers, production and customers, and customer service and the satisfaction of desires; delivering orders on time is paramount in the business because, without customers, there will be no business.
Continuing the topic of customer satisfaction, it is found that this depends on efficient warehousing logistics processes, when the manufacturing company can in a timely fashion, supply the production of essential raw materials and send the finished products to the customer according to the contract terms. In addition, the importance of warehousing logistics processes stands out in the circulation of goods throughout the supply chain. Concluding the problems of warehousing processes, the scientific literature highlights: problems in the warehouse order collection process, inefficient use of warehouse space, improper work of employees, and the most important problem-customer dissatisfaction with product delivery dates. In their research, the researchers found that the following were important in solving these problems: the use of the right equipment, staff training, but the most important solutions are innovative methods and technologies that will not only solve internal problems and satisfy customers but will also be completely uncompetitive. in your market. There are times when companies must monitor new technologies and methods that will provide productivity in their work processes, otherwise, more innovative companies will drive them out of the market.
After discussing the theoretical background in the next chapter of this study, we will describe the Materials and Methods of the research.

3. Materials and Methods

In order to search out and offer innovative solutions for the improvement of the storage processes in LMCs, we will discuss research methods and organization of the research. In this research warehousing sector is recognized as demand in both the Lithuanian and international markets as it connects suppliers and consumers throughout the supply chain. The task of warehousing processes is to efficiently interconnect a complex set of operations. For the research, we selected one of the most popular LMCs, which was established in 1995. This company manufactures 500–2500 kg capacity big bags and other products for fertilizer, food industries, agriculture, and waste management. LMC was chosen as an example of the warehousing sector for the study. The authors note that this LMC was selected to find out the problematic aspects of warehousing processes, methods, and technologies used in warehousing work, as well as to identify criteria that would be the basis for selecting the best innovative solutions for improving warehouse logistics processes.

3.1. Methods

A qualitative research method was applied as the most appropriate and the most that responded to the research. Based on the systematic analysis of the scientific literature, a qualitative interview questionnaire was developed by the authors. The basis of the qualitative interview is open-ended questions, which are expected to be as broad, comprehensive, and open as possible, formulated and presented by the research participant himself/herself [59,60,61]. An exploratory interview is defined as a researcher-initiated two-person interview aimed at gathering the information needed for research tasks [59]. The interview questionnaire was prepared in advance and consisted of 10 questions. All questions are related to the topic of the work: evaluation of warehousing processes in the company; problematic aspects of warehousing processes in LMC; the impact of warehousing processes on customer needs; programs, methods, and technologies that are used in the warehouse processes of LMCs; and exclusion of criteria—the basis for selecting the best solutions and key solutions to improve warehousing logistics processes. The goals of a qualitative study focus on details, nuances, or processes, so the selection must be careful, thoughtful, and reasonable. It is often convenient to have a smaller number of study participants so that each case can be examined in depth, and such participants are needed whose special characteristics would allow them to best reflect and inform about the research phenomenon [60,61]. It is important to estimate how many respondents it is appropriate to interview because the reliability of the data directly depends on the selection of suitable respondents and the collection of sufficient data [60,61]. Therefore, to determine the number of participants, it was decided to select nine respondents: the Director of the company, the Deputy Director for Commerce, the Deputy Director for Production, the Head of Department, Chief Accountant, Technologist, Sales Manager, Chief Storekeeper, and Storekeeper. All respondents worked for LMC in their job positions from 10 to 15 years. The researcher should select data analysis units in preparation for the analysis of the study data. When analyzing research data, individual words, sentences, paragraphs, and text excerpts can be considered as semantic units. Data are coded using a qualitative content analysis method [60,62,63]. Therefore, using the content analysis method, the main goal was to select, sort, systematize, and analyze information by topic.

3.2. Case Setting

The LMC was established in 1995. This company manufactures 500–2500 kg capacity big bags and other products for fertilizer-chemical, construction, food industries, agriculture, and waste management. A detailed product assortment of the LMC is presented in Figure 3.
The LMC manufactures polypropylene big bags for packaging, storage, and transportation of products: fertilizers, plastic granules, construction materials, and other bulk products. Food bags are also stored and transported in big bags, e.g., sugar, flour, and grain. The LMC offers high-quality big bags with a wide assortment of applications, the use of which saves consumers time, reduces transportation costs, and facilitates the loading of products. The raw materials used in the production of big bags are woven polypropylene (PP) fabrics, belts, threads, and polyethylene film. Up to 700 tons of polypropylene and polyethylene raw materials can be stored in the company’s 1500 m2 closed storage facilities. Working with highly qualified specialists, the LMC can meet the needs of both large and small customers not only in Lithuania but also in Europe. The company has regular long-term customers in Estonia, Latvia, Sweden, Finland, Germany, Poland, France, and the Netherlands.
The LMC has documented, implemented, and maintains the storage process management procedure (hereinafter, P-12), according to which the procedure for acceptance, storage, and issuance of raw materials, consumables, other products, and finished products is established. This procedure must be used by the employees of the company’s divisions involved in the storage and issuance of raw materials, consumables, and other supplies and products. In addition, the LMC has documented and implemented a raw materials, materials, and finished products maintenance program, which sets out requirements for accepting and storing raw materials, materials, and finished products in the company’s warehouses to ensure their safety and quality. This program applies to employees of the company’s divisions involved in the control and warehousing processes of raw materials, supplies, and products. This program is managed, and changes are made according to the procedure established in the “Document Management” procedure. The staff responsible for most of the steps in the process are the warehouse keepers, warehouse staff, and the logistics manager. The storage processes of the LMC are presented in Figure 4. Kłodawski et al. [4] describe the warehousing process as a set of actions that involves receiving, storing, assembling, and shipping goods.
As the data in Figure 3 show, the storage process of the LMC consists of eight stages. The first is storage planning; at this stage, the warehouse keeper plans storage locations. The second is the storage of products, taking into account the characteristics of the product, technical storage conditions, and safety requirements. The third is the transfer of finished products to storage, filling in certain documents, and integrating the information into the business management information system; fourth, the storage of finished products according to customer orders; fifth, preparation of orders for unloading of products, where the warehouse keeper, in accordance with the order for production, assembles products for unloading according to quantities and types; sixth, organization of the delivery of finished products to the customer. At this stage, the logistics manager, after evaluating customer orders, organizes the delivery of products. In the seventh stage, the warehouse keeper organizes and controls the loading of products, and in the last eighth stage, the accounting of raw materials, materials, and products is performed.
The current situation of the LMC. Finished products are purchased in large quantities to obtain a more favorable price from suppliers. Uninterrupted production is also purchased and raw materials are purchased. Full containers and tractors with raw materials and finished products arrive every week. There may be no storage spaces or products may be out of stock. Warehouses cannot find the required products in the warehouse at the right time because instead of four warehouse staff who work two shifts, they now work one per shift. As a result of the situation, due to the heavy workload, it is not possible to enter all the information manually into the programs, no production is controlled, raw materials are unloaded and stored. Warehouse keepers have a lot of information to memorize and combine into one program, but because of two-shifts work, misunderstandings arise. Employees are dissatisfied due to high workload; customers are dissatisfied due to late orders. Finished products stand outdoors because there is no free space in the warehouse to store them. There are cases when, due to unfavorable weather conditions, the products get wet and these reach the customer, so that claims are received.

4. Results

During the analysis of the survey data, it was found that the survey participants evaluated the company’s warehouse processes as satisfactory, average, or good. It was noticed that the company uses old methods: paper cards are still used, there are no warehouse programs, with a lot of manual work. The lack of space was found to make it difficult to store incoming goods and raw materials. It was also investigated that the warehouse system itself is inefficient: “There are no scanning [of] items, it means we work inefficiently, then we must earn every item receivable or not, just with a felt-tip pen, physically and it is a waste of time. It is then necessary to be a warehouse keeper with constant participation, so that it is possible to run, scan everything and have the result in the system immediately” (X6), which is often done at the discretion of the employees. Study participant X8 highlighted the lack of planning in warehousing processes: “... because there is no clear division of labor. “Don’t know, for example, what fabrics will be needed for production, what materials will be needed: call, bring, and before the time is delivered, time is running out and production is important. As a result, it takes time to prepare orders.” (X8). Study participants X7 and X8 emphasized that there is a clear need to speed up processes to make work faster and more efficient, while participants X3 and X7 mentioned that work is duplicated and can certainly be eliminated. Summarizing the evaluation of the LMC warehousing processes from the point of view of warehouse keepers and administration staff, it can be concluded that warehousing processes require modernization, which the research participants X1, X3, and X5 also talk about.
Problems identified in the warehousing logistics processes of LMC. After analyzing the research results on the problems of warehousing logistics processes in the LMC to date, the main problems were identified from the point of view of warehouse keepers and administration staff. These included: a lot of manual work in warehousing and warehousing processes, lack of communication, heavy workload for warehousing staff, lack of space, order picking process problems, various errors in warehouse work and warehousing processes, security problems and inefficiency, and inefficiency of warehouse processes. Out of all the listed problems, there was a lack of space and inefficient use of storage space. All participants in the study emphasized that the lack of space was not due to the physical lack of space, but to the fact that the warehouse space was not fully utilized. Study participant X7 singled out: “The storage room, it is very high, why it is not possible to load pallets not on two floors, but, e.g., five floors. There must be racks” (X7). Most argued that racking systems could solve the problem. Study participant X2 noted: “If there are not many goods, then everything is fine. But if there is a larger quantity of goods, we have nowhere to store them, we already put them there” (X2). Participant X3 emphasized that the finished product suffers from a lack of space: “Often the product is in the field under awnings, gets wet, orally (X3). loaded. Other materials are coming, you will move elsewhere again. Then one storekeeper does not find other substances” (X8); study participant X4: “It is not the case that you have come, and you have all the pallets in front of you. That is not the case. They are loaded with other pallets” (X4). Most of the participants in the study singled out a lot of manual labor in the warehousing processes, which caused a high workload for warehouse keepers and various errors in warehousing and warehousing processes: e.g., on the issue of raw materials., ”All this is done by hand, with those cards, with Excel-ancient methods...” (X1); “In fact, we also have an Excel spreadsheet where we still have to write it down. There is an app-Axapta, we use it there, too, needs to be written off. Cards need to be written off. Maybe the same thing is lost through those few positions” (X8). A problem was also observed during the study: a lack of communication, as stated by study participant X2: “The biggest problem is that there is no communication everywhere. For example, if someone puts something together in a different way, it does not pack it that way” (X2). During the research, several participants of the research also mentioned the problem of security in the warehouse work processes. It should be noted that study participant X6 stated that racks and handling equipment would minimize the following risks: “There should be a different storage system: racks, new handling equipment even” (X6). In today’s working conditions, the company strives to maintain occupational safety, as commented by research participant X5: “As a result, for example, we store rolls, with a maximum of three floors, placed on top of each other, and pallets with a maximum of two floors can be stored, otherwise it is already unsafe” (X5). The last problem highlighted by the study participants was the inefficiency and unproductivity of warehouse processes: loss of time during production loading, loss of time in data duplication, and loss of time in searching for goods when there is no order. In summary, it can be concluded that the LMC has many problems with the warehouse and warehousing processes to this day. Not all problems are new; some have been talked about for many years. But problems such as lack of space were felt most precisely at the beginning of the pandemic period. Because the LMC was buying more than usual due to the lack of raw materials. This is confirmed by the statements of research participant X6: “Again, we could have a little less raw material, then maybe we would not say that we lack space. Now we are what we are, basically we have used up all our places and, in some periods, we are even a little short of square footage, for example. But here’s the thing, well, for the sake of greater security, we’re even keeping more raw materials, just maybe all those COVID, the whole supply chain from Asia is getting longer, let’s just say it’s happening right now. In the past, we were able to work with a much smaller warehouse, more different positions, and smaller quantities than now, in that sense. Now we see that you must have just 20–30 percent extra as such” (X6). Therefore, it can be concluded that all long-known and visible problems in the company’s warehouse processes became apparent due to external factors.
Satisfaction of customer needs in the warehouse processes of the researched company. All surveyed respondents indicated that the needs of the company’s customers are met well-enough; the warehouse staff can not find the products they need quickly or are confused—they send out the wrong pallet, but this is not very common, and as most mentioned, only “sometimes”. Due to the poor quality of production, which is sometimes stored in the wrong conditions, it is no longer the fault of the warehouse staff but the organizational problem of the company itself. Justifications against customers due to production delays are also due to warehouse work, but this is also a rare case. In summary, it can be said that the operation of the warehouse and warehousing processes meet the needs of customers well enough, but in order not to be good but to be perfect, the company has to solve the problems.
Programs, methods, and technologies are used in the storage work and processes of the researched company. After analyzing the programs, methods, and technologies used in the storage activities of the LMC, it was determined that the following are used: Microsoft Excel program, Microsoft Dynamics Axapta program, paper cards, diagrams (many stored in the warehouse), and rations. This was all mentioned by all study participants. Respondents noted that these are old, outdated methods, as information is duplicated and time-consuming: “The use of cards in warehouse processes is probably, you don’t know how here… a matter of mentality. I don’t know if the attachment to the past, because, in principle, in the company it is not promoted in any way, there is even a recommendation not to use them, to give them up, but the people working there <…> continue to use them. <…> wasting time in this place too. He writes the same thing in three places. And we all know that we can only trust one program-Axapta, only it is the original one way or another today” (X6). In summary, it can be concluded that in the company’s warehouse processes are used old methods, programs, which makes the warehouse work and processes inefficient and unproductive. However, without modernizing the warehouse, the warehouse staff has no choice: “Duplicate, of course. But the question is: would we be able to find the ends…” (X4).
Use of Just-in-Time and Lean methods in the work of LMC warehouse. After analyzing the results of the research on the use of just-in-time and lean methods in the work and processes of the warehouse of UAB X, it was found that the just-in-time method is used in 20–30% in the company. According to the answers of the study participants, it can be stated that this method could not be used 100% because the company imports production, raw materials, or purchased products from distant countries, order forecasts are very inaccurate, so this method is more applicable to internal processes or food packaging: “In the warehouse itself, perhaps internal supply, departments takes place by this method. We are reloading into a production workshop, say another division, today so that they get tomorrow… This principle may be going on” (X6); “Now, as far as production is concerned, if, in terms of between departments, it is what is needed at that moment, it is a warehouse and provides what is needed for production (X5); “just-in-time. Usually raw materials are ordered as much as is needed to make food packaging. We actually produce about 15 percent” (X9). As for the Lean method, the participants of the study were divided into two groups: some said that it was used to some extent, others said that it did not stick and did not work in the company. Study participant X6 stated, “That it is good practice to change that supply somewhat between internal units. That was done. It was that lean, but I’m not going to say that we can boast of something, that we’re working under lean, no ” (X6). Study participant X8: “There is no strict order according to lean, there are some markings there, but certainly not everything” (X8). Study participant X6 said: “You have to start with the infrastructure first, then you can combine something” (X5). In summary, it can be concluded that JIT is used in the company as much as the specifics of production and activities allow, and the lean method lacks the infrastructure and people’s willingness to change something in their work activities.
The use of racks, rack loaders and the ABC method in the warehouse processes of the company under study. After analyzing the results of the research on the use of racks, rack loaders, and ABC method in the work and processes of UAB X warehouse, it was found that racks and rack loaders are not used in the company, and the ABC method is only partially used: “It is not so named because, for example, food bags have their place in storage and food raw materials also have their place marked“ (X9); “ABC is used more for raw materials” (X6). In addition, according to participant X4, it was found that its own marking method was used: “I don’t know what it’s called. I entered that notation because it was impossible to find it ” (X4). During the analysis of the participants of the study, it was emphasized that: “Shelving would suit <…> significantly solve the issue of storage” (X5). As UAB X used to produce all the products itself, there was enough space, but when the company started to buy the finished products and carry out trade instead of production, there was a lack of storage space. It was also noted that the racking system would solve inefficient storage processes: unloading, reloading, assemblyꓽ “When a new batch of rolls is delivered, we load in the same place on top. In order to take and remove all the rolls and rebuild them again, it is a big job” (X5). In summary, it can be concluded that UAB X does not have a racking system, but costs and expedited storage staff. The ABC method is used in part in the company: only for food packaging and VIP customer, technical big bags are stored where there is free space. According to the participants of the study, it can be said that the full ABC method would not be suitable for the analyzed company due to the specifics of the work, as it is a manufacturing company and the orders are volatile for different customers. The company also uses its own marking method, which has no name but helps warehouse workers in the current situation.
Need to install material planning (MRP) or (ERP) enterprise resource planning systems in LMC. After analyzing the results of the study on the need to implement a material planning (MRP) or (ERP) enterprise resource planning system in UAB X, it was found that the need is: “Yes, I think there is a need because we have a real current program, but it does not reflect the real warehouse image… And we have problems, sometimes to zero, depleting certain raw materials ” (X3). Some of the participants in the study were in favor of a material planning (MRP) system, while others said that it was necessary (ERP)—a company’s resource planning system: “But there should also be production here, everything in that sense. As ERP, everything is common: and this and that alone could not work” (X6). In summary, it can be concluded that the need for material planning (MRP) or (ERP) enterprise resource planning systems in the LMC would be challenging, because in the current situation there are many problems: production does not produce orders on time, due to late raw materials, and, as well, time is spent inefficiently working on this issue.
Solving warehousing problems and streamlining warehousing processes with the help of warehouse management systems combined with barcode technologies. After analyzing the respondents’ answers about warehouse management systems (WMS), including pick by voice together with bar code technologies, it was found that all respondents supported the following implementation technologies in UAB X: “problems are more efficient for us” (X1); “In my opinion, all this would make the company’s storage processes more efficient” (X3); “I would think that with the barcode we could move forward... I would see this, it would help a lot... There will be fewer mistakes…” (X6). In summary, it can be concluded that all these technologies would be of great benefit to the company, as acknowledged by the study participants. A warehouse management system combined with barcode technology would speed up all warehousing processes: receipt, warehousing, assembly, and shipping. It would not only make the work easier for the warehouse employees, as it would reduce the number of handwriting and handwriting, but it would also be efficient for other departments of the company, fewer mistakes would be made, and productivity would increase.
LMC storage process improvement criteria. After analyzing the answers of the research participants, the most important criteria were identified by the warehouse and administration staff of the LMC as quality, speed, efficiency, easy management, efficient management, convenience, time saving, easy to understand, good training, error elimination, and price. It can be seen that price was not a priority criterion. It was noted that there should be: “Value for money” (X3); Speed-“install quickly” (X1); “The ability to see the full view of the warehouse available in a timely manner” (X3); Efficiency: “efficient resource management” (X3); “Work more efficiently than now” (X4). Easy operation: “no one wants to work hard with a difficult program” (X1); “Ease of use” (X3). “Should not burden them” (X3); “Usually easy to understand” (X3); “It’s fast, easy to use” (X8); Saving time: “they would save time” (X3); Good training: “improve the qualifications of warehouse workers” (X4). In summary, it can be concluded that all criteria are aimed at solving existing problems, facilitating the work of warehouse employees, eliminating errors, and increasing the efficiency of the entire company, as the warehouse is an integral part of the company, affecting the overall productivity of UAB X.
LMC warehousing logistics process innovative solutions and suggestions. After analyzing the answers of the research participants, the suggestions of the warehouse keepers and the administration staff for the improvement of the warehousing logistics processes of the LMC were determined. Most were in favor of buying a racking system: “An efficient warehouse is one that is as small as possible, and then it is efficient. The bigger it means, you won’t find anything there, no matter what markings there are, the distances will be great then… Well, maybe there’s a desire to build another warehouse… and, let’s say, not for that. This would just solve the perhaps more efficient use and you would not need to expand any storage capacity. Vertically, the entire warehouse is empty… (X6); “The warehouse is constantly crying because of the storage space, even the inventory can’t be done normally: access to the goods you need, and those pallets where you are standing outside for a long time, all the notes have even faded and how they can stand that way. We need shelving, we need to deal with it somehow” (X7). It was further proposed to integrate the bar code system with the control system. It was noted that a raw materials management program is really needed as the company’s processes are now stalled at this location, creating new problems. Participants in the study were also singled out: specialist consultations and staff training. Summarizing the suggestions of the research participants, it can be concluded that solving the LMCs problems in the field of storage requires not only specialist consultations and staff training, but also a complex of innovative solutions such as the use of rack systems with a rack truck, the application of a warehouse management system with a barcode, and raw material management programs use, etc.
Summarizing innovative solutions and discussing the results of the interviews with the administration and warehouse staff of LMC and their analysis, it can be concluded that: (1) the work and processes of the company’s warehouse require modernization; (2) The main problems identified are related to: manual work, lack of communication, heavy workload of warehouse staff, lack of space, problems in the order collection process, various errors in warehousing processes, security and inefficiency of warehouse processes. Some of the problems became apparent during the pandemic; (3) warehousing processes meet the needs of customers “well enough”, but not perfectly; (4) old methods and programs are used in the storage work, due to which the warehouse processes are unproductive; (5) just-in-time is used in the company as much as the specifics of production and activities allow, and people are not in favor of the Lean method; (6) racks and rack loaders are not used in the company, and the ABC method is used only to a small extent: for food packaging and for the VIP customer; (7) the need for material planning (MRP) and/or (ERP) enterprise resource planning systems of LMC would be; (8) warehouse management system combined with bar code technology would be very beneficial for the company; (9) the most important criteria for the improvement of storage processes would be: quality, speed, efficiency, easy management, convenience, time saving, elimination of errors, price, etc. After analysis of the obtained results, it can be stated that to solve the problems in the LMC warehousing processes, complex innovative solutions are required, such as racking systems with racking truck, warehouse management systems with barcode, a raw material management program, a pick by voice system, MRP and ERP systems, while ABC, JIT, and lean methods should be used.

5. Discussion and Conclusions

After the analysis of the warehousing process documents of the LMC, it can be stated that the company has quite efficient quality-oriented warehousing logistics process tools. A maintenance program for raw materials, supplies, and finished products is in place, and storage process procedures are documented. It was found that all these measures were effective 10–15 years ago and brought good performance to the company. However, today, the company’s tools, including warehouse programs, the work of warehousing processes, as well as the warehouse work strategy of the LMC are already unsuitable. Customer requirements and preferences [30] are constantly changing, so new tools are emerging in the world: systems, technologies [23], and methods to meet customer needs. A company that does not use new tools to improve its performance will not be able to remain competitive and continue to operate at the same level of productivity. In today’s era of industrial economics, warehousing is a complex process with many moving parts and is required to contribute productively to the success of supply chain management [64]. Technological innovations like digitalization and automation are transforming the logistics industry. Supply chains are responding to new opportunities to provide digital services with new business models, and logistics and transport processes are reorganized as part of these changes [65]. According to El Hamdi and Abouabdellah [66], the digitalization phase of traditional logistics solutions makes the logistics system more efficient and flexible in the face of changes in the market and customer needs [66]. Digitized internal and external logistics will provide an interconnected system, advanced information analysis and prediction tools, a smart warehouse, and an intelligent transport system [66]. However, it should not be forgotten that innovation is not just a new technology, but rather a set of factors and actions leading to the improvement, creation, and implementation of processes and more efficient satisfaction of needs [67]. It has been established that the activities of the warehouse of the LMC require new innovative solutions so that the warehousing processes run smoothly in the production company, and that the warehouse, as an element of the company and part of the supply chain, functions and performs its work qualitatively.
The limitation of this paper is that the selected research method does not produce fully representative results because the basis of the qualitative interview was open-ended questions, which are expected to be as broad, comprehensive and open as possible, formulated and presented by the research participant himself. Another limitation of this study is that in order to present as many innovative solutions as possible, a quantitative data collection method was needed to explain the topic in more detail (e.g., to create an information base, to suggest ideas, identify benefits, etc.). Finally, due to the wide scope of the problem and the preliminary nature of the analysis, the study was rigorously exploratory.
Warehousing plays an important role in the modern supply chain [22,27,29,30,32,35] and in the company’s operations [25,51,57], as confirmed by most authors of scientific articles. The role of warehouses in modern logistics is becoming increasingly important due to the growing number of manufacturing companies, high customer needs, and growing competition in Lithuanian and foreign markets. It has been analyzed that the problems of warehousing logistics processes are related to the time of collection of warehouse orders, inefficient use of warehouse space, improper planning and utilization of warehouse capacity, and use of inappropriate equipment. The scientific literature presents various solutions to the problems of warehousing logistics processes, but the main ones are related to modern technologies and methods. It has been established that the most suitable methods for warehousing logistics process [35] improvement solutions in a manufacturing company are the ABC method [58], the JIT method [57,68], and the lean method [68,69]. As for the systems to solve complex company problems, these would be WMS warehouse management systems, the pick by voice system [53], MRP, and ERP systems [54], RFID and barcode technologies. In addition, tools without which storage assistance is not possible include racks, rack loaders, and other equipment. Based on the analysis of the scientific literature, the model consists of ten steps for a manufacturing company, which is a consistent and systematic process that helps to: identify problems, find innovative solutions to those problems, choose the best solution for improvement, and find ways to implement it.
An empirical research methodology has been developed for the implementation of the processes, which consisted of a qualitative interview method. The presented analysis revealed future research to develop this field for the development of innovative solutions for the improvement of the storage processes as the warehouse connects suppliers and consumers throughout the supply chain. Thus, this sector is in demand in both the Lithuanian and international markets. As the aim of this study was to search out and to offer innovative solutions for the improvement of the storage processes. Thus, summarizing the results of the research, it can be concluded that solving the problems of LMC warehousing processes and implementing improvements in warehousing requires staff training, specialist consultations and also a complex of innovative solutions such as: using racking systems with a racking truck, a warehouse management system with barcode, a raw material management program, an application Pick by Voice system, MRP and ERP systems, and utilizing ABC, JIT and Lean methods. Hopefully, this study will make a contribution to the warehousing sector and for all storage processes. This study is only a preliminary investigation; further and deeper research is needed, which we plan to develop in our future work. Perhaps this analysis could encourage other scientists and researchers, as well as practitioners, to discuss and perhaps to make appropriate decisions on how to achieve greater innovative solutions for the improvement of the storage processes.

Author Contributions

Conceptualization, D.P., K.R. and R.P.; methodology, D.P., K.R. and R.P.; data curation, D.P., K.R. and R.P.; writing—original draft preparation, D.P., K.R. and R.P.; writing—review and editing, D.P. and R.P. All authors have read and agreed to the published version of the manuscript.

Funding

This research received no external funding.

Institutional Review Board Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

MDPI Research Data Policies.

Conflicts of Interest

The authors declare no conflict of interest.

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Figure 1. The main warehouse processes in a manufacturing plant [25,34,42].
Figure 1. The main warehouse processes in a manufacturing plant [25,34,42].
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Figure 2. Innovative Solutions for the improvement of warehousing logistics processes in a manufacturing company (based on the authors’ works presented in Table 2).
Figure 2. Innovative Solutions for the improvement of warehousing logistics processes in a manufacturing company (based on the authors’ works presented in Table 2).
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Figure 3. Assortment of products manufactured by the LMC (compiled by the author using documents from the LMC).
Figure 3. Assortment of products manufactured by the LMC (compiled by the author using documents from the LMC).
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Figure 4. The LMC warehousing process (compiled by the authors using internal documents of the LMC).
Figure 4. The LMC warehousing process (compiled by the authors using internal documents of the LMC).
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Table 1. The concept of warehousing logistics (compiled by the authors according to the works of the research presented in the Table).
Table 1. The concept of warehousing logistics (compiled by the authors according to the works of the research presented in the Table).
AuthorsConcept
Mubarik et al. [13]Warehousing plays an integrative role in the supply chain as it is the link between production, the market, suppliers, customers, and the overall business environment.
Mohamed et al. [14]Storage plays an important role in modern supply chains. It is the coordinating node of the material flow between the services of the company. It is also a coordinating node between suppliers and customers.
Dragomirov [15]Warehouses are an integral part of any efficient logistics system. Through their integration, issues related to the movement of material flows in the supply chain, from the supplier to the consumer, are addressed.
Karim et al. [16]The role of the warehouse in the supply chain is very important, as it is used during production to store products until they are delivered to consumers on demand. In today’s highly competitive business environment, a warehouse is not just a storage space for products; the warehouse also manages and provides value-added services.
Kibria et al. [17]Storage is a mandatory part of any existing distribution network designed for the long-term storage of goods: raw materials, technological materials, packaging materials, or finished products related to production. Storage provides the usefulness of time and space for any product.
Kudelska and Pawłowski [18]Warehouses are important points in every business and supply chain.
Kudelska and Niedbał [19]Today, almost every company has its own warehouse or rents it out. Modern warehouses, therefore, play an important role in production and service networks. Today’s warehouses should be described as the implementation of rapid warehousing processes between the collection and issuance stages.
Škerlič et al. [20]Warehousing is one of the activities that require many systems to ensure security and the quality of work processes, as errors can occur during warehousing operations.
Škerlič and Muha [21]Warehousing is a labor-intensive process: warehouse operators must use different working methods and equipment and move constantly.
Mostafa et al. [22]Warehouses are a key part of the supply chain. They are used to store products and manage inventory levels.
Čolaković et al. [23]Warehouses are premises used to store goods, the main task of which is to ensure their security, value, and quality. A warehouse is a complex environment that uses a variety of processes and operations to perform acquisition, storage, and issuance.
Chiang et al. [24]Because every link in the supply chain must maintain very high efficiencies, warehousing is an integral part of the supply chain. Warehousing activities include receiving, placing, internal replenishment, order picking, sorting, packing, and shipping.
Dieu Ho et al. [25]Warehouses provide significant added value by providing a competitive advantage, supporting business growth and efficiency throughout the supply chain.
Freitas et al. [26]A warehouse can be defined as a material handling station for the reception, storage, and preparation for dispatch of raw materials, semi-finished or finished products. The role of warehouses in modern logistics is becoming increasingly important due to the rapid growth of e-commerce transactions, the reduction of desired inventory, and rapid response to customer requests.
Singh et al. [27]Warehouses are a very important part of the supply chain in local or international markets. Warehouse location determines speed and efficiency in the supply chain. The warehouse is a large building that stores raw materials and manufactured products before they are sent to customers.
Kusrini et al. [28]Warehousing activities depend on the variety and number of goods, the daily workload, and the diversity of processes required to meet the needs of customers and suppliers. The warehouse activities are divided into five activities: receiving, postponing, storing, collecting, and shipping orders.
Prananingtyasa and Zulaekhah [29]Various studies have confirmed the important role of warehousing as a basis for the supply chain management.
Olaku et al. [30]Warehousing is part of the company’s logistics function, which is responsible for warehousing and inventory management, from the receipt of goods to the dispatch process.
Rahman and Saifudin [31]A warehouse is an important element of logistics operations as it contributes to supply chain performance and management costs.
Appiah et al. [32]Warehouses play a key role in creating added value in the service supply chain.
Warehousing involves the performance of administrative and physical functions related to the storage of goods and materials.
Karim et al. [33]A warehouse is more than a place to store. The goals of warehouse management are to increase productivity, reduce inventory levels, and maintain good customer service.
Dragomirov [15]Warehousing is a purposeful stocking activity that ensures the regular flow of production processes.
Habazin et al. [34]Storage means picking up, handling, transporting, loading, unloading, packing, handling, and shipping.
Garmash et al. [35]Warehouse logistics is an essential part of a company’s operations and occupies a large part of it. Warehouses provide warehousing, processing, and distribution services between producers and end users. The warehouse is considered an integrated component in the logistics chain that allows a high level of profitability to be achieved.
Putra et al. [36]A warehouse is an area that performs the function of storing materials or manufactured goods over a period.
Table 2. Problems and solutions of warehousing logistics processes (compiled by the authors based on the works of the researchers presented in the Table).
Table 2. Problems and solutions of warehousing logistics processes (compiled by the authors based on the works of the researchers presented in the Table).
AuthorsProblem GroupsSolutions for the Improvement
Habazin et al. [34], Dieu Ho et al. [25], Škerlič and Muha [20,21], Chiang et al. [34], Dauod et al. [24], Kłodawski et al. [4], Mubarik et al. [13], Lorenc et al. [46], Lorenc and Lerher [41], Giannikas et al. [43]Problems in the warehouse order collection process—70 percent time and 55 percent costs. Effective planning of warehouse space; optimization of collection time and route; implementation of warehouse management systems (WMS); using the ABC method.
Caprili et al. [47], Tsarpalis et al. [48]Inefficient use of warehouse space.Use of appropriate functional equipment: racks, rack loaders.
Dieu Ho et al. [25], Kudelska and Niedbał [18], Škerlič et al. [20], Zoubek et al. [34]Occurrence of various errors in warehouse processes; lmproper work of warehouse staff.Training of employees; Implementation of warehouse management system; Implementation of warehouse process technology “Pick by Voice”.
Kusrini et al. [28], Olaku et al. [30], Karim et al. [16], Kudelska and Niedbał [19], Škerlič and Muha [21], Kudelska, et al. [49]Gaps in warehouse processes: automation—20 percent, manual work—80 percent; long delivery time problems, dissatisfied customers.Implementation of technological solutions: use of (ERP) enterprise resource planning system, (WMS) warehouse management system implementation.
Škerlič and Muha [21]Automation problems: more complex tasks, mistakes made by warehouse keepers.Training and motivating employees to work well.
Dieu Ho et al. [25], Kudelska and Pawłowski [18]Security issues.Use of safe work equipment, good warehouse layout that does not create congestion, and compliance with work safety rules.
Martinsa et al. [50], Petryla [51]Improper planning and lack of storage space.Applying the Lean method to storage activities.
Kučera [52], Aleksandrova and Munshi [8], Prananingtyasa and Zulaekhah [29]100 percent underutilization of storage capacity.Implementation of warehouse management systems (WMS).
Dujmešic, Bajor and Rožic [53], Kudelska and Pawłowski [18], Škerlič and Muha [21]Inefficiency and unproductivity of warehouse processes.Implementation of warehouse process technology “Pick by Voice”; implementation of Warehouse Management System (WMS).
Zoubek et al. [37], Škerlič and Muha [21]Storage inefficiency and
lack of storage space.
Use of barcode technology; (RFID) Use of radio frequency identification technology; Use of Real Time Location System; Smart scanning technology; Using the ABC method; Automated vehicle.
Najy [54], Badewole [55], Putra et al. [36], Utami et al. [56], Mankazana and Mukwakungu [57]Lack of storage space.Use of (MRP) material requirements planning system; Use of (ERP) enterprise resource planning system; Use of (JIT) Just-in-Time method.
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Perkumienė, D.; Ratautaitė, K.; Pranskūnienė, R. Innovative Solutions and Challenges for the Improvement of Storage Processes. Sustainability 2022, 14, 10616. https://doi.org/10.3390/su141710616

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Perkumienė D, Ratautaitė K, Pranskūnienė R. Innovative Solutions and Challenges for the Improvement of Storage Processes. Sustainability. 2022; 14(17):10616. https://doi.org/10.3390/su141710616

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Perkumienė, Dalia, Kristina Ratautaitė, and Rasa Pranskūnienė. 2022. "Innovative Solutions and Challenges for the Improvement of Storage Processes" Sustainability 14, no. 17: 10616. https://doi.org/10.3390/su141710616

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