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Manajemen inventaris bahan baku yang efisien sangat penting bagi kelangsungan operasional Usaha Mikro, Kecil, dan Menengah (UMKM), khususnya di industri kuliner. Artikel ini membahas penerapan metode Economic Order Quantity (EOQ) dan Reorder Point (ROP) dalam manajemen inventaris bahan baku di Moon Cafe, salah satu UMKM di kota Batam. EOQ digunakan untuk menentukan jumlah pemesanan yang optimal, sehingga biaya pemesanan dan penyimpanan bahan baku dapat diminimalkan. Sementara itu, ROP berfungsi untuk menentukan titik pemesanan ulang bahan baku agar tidak terjadi kekurangan atau kelebihan stok. Melalui analisis data historis konsumsi bahan baku, penerapan metode ini diharapkan dapat meningkatkan efisiensi operasional Moon Cafe, mengurangi pemborosan biaya, serta meningkatkan ketersediaan bahan baku secara tepat waktu. Hasil penelitian menunjukkan bahwa dengan menggunakan EOQ dan ROP, Moon Cafe dapat mengoptimalkan proses pengadaan bahan baku, mengurangi biaya penyimpanan, serta memastikan kelancaran produksi dan pelayanan. Kata Kunci: Bahan Baku, Efisiensi, EOQ, Manajemen Inventaris, UMKM

Manajemen inventaris bahan baku yang efisien sangat penting bagi kelangsungan operasional Usaha Mikro, Kecil, dan Menengah (UMKM), khususnya di industri kuliner. Artikel ini membahas penerapan metode Economic Order Quantity (EOQ) dan Reorder Point (ROP) dalam manajemen inventaris bahan baku di Moon Cafe, salah satu UMKM di kota Batam. EOQ digunakan untuk menentukan jumlah pemesanan yang optimal, sehingga biaya pemesanan dan penyimpanan bahan baku dapat diminimalkan. Sementara itu, ROP berfungsi untuk menentukan titik pemesanan ulang bahan baku agar tidak terjadi kekurangan atau kelebihan stok. Melalui analisis data historis konsumsi bahan baku, penerapan metode ini diharapkan dapat meningkatkan efisiensi operasional Moon Cafe, mengurangi pemborosan biaya, serta meningkatkan ketersediaan bahan baku secara tepat waktu. Hasil penelitian menunjukkan bahwa dengan menggunakan EOQ dan ROP, Moon Cafe dapat mengoptimalkan proses pengadaan bahan baku, mengurangi biaya penyimpanan, serta memastikan kelancaran produksi dan pelayanan. Kata Kunci: Bahan Baku, Efisiensi, EOQ, Manajemen Inventaris, UMKM

Sosis Solo Gajahan is a business operating in the food industry, the problem faced by the company is whether the control of raw material inventory for Sosis Solo Gajahan is efficient and whether the application of the Material Requirement Planning (MRP) method can streamline the cost of raw material inventory for Sosis Solo Gajahan. The aim of this research is to consider the company's efficiency in raw material inventory costs and can be used to make decisions related to the efficiency of raw material inventory costs. By using the Material Requirement Planning (MRP) method which consists of the Lot For Lot (LFL), Economic Order Quantity (EOQ) and Period Order Quantity (POQ) methods. Based on the results of the total cost calculation according to company policy of IDR 5,131,580 and based on the Material Requirement Planning (MRP) method, which consists of the Lot For Lot (LFL) technique of IDR 696,000, the Economic Order Quantity (EOQ) technique of IDR 1,290,360, and the Period Order Quantity (POQ) technique of IDR 696,000, the researchers concluded that the most efficient method applied at Sosis Solo Gajahan was the Lot For Lot (LFL) and Period Order Quantity (POQ) methods. The Lot For Lot (LFL) method produces inventory costs of IDR 696,000 and the Period Order Quantity (POQ) method produces inventory costs of IDR 696,000 and it is best to calculate raw material inventory control costs using the Material Requirement Planning (MRP) method with the Lot For Lot technique ( LFL) and Period Order Quantity (POQ) techniques, because they can achieve efficient raw material purchasing costs compared to current company policies.

Every company that carries out production activities needs a supply of raw materials. With the availability of raw materials, it is hoped that industrial companies can carry out the production process according to consumer demand. In addition, adequate supplies of raw materials in the warehouse are also expected to improve the smoothness of production or service to consumers, as well as prevent shortages of raw materials. This research aims to identify and analyze the inventory management of raw materials implemented by the National Tofu Factory. The research method used is descriptive, with analysis using the Economic Order Quantity (EOQ) method. The data collected is in the form of interview results as primary data. The results of the research show that the management of raw material inventory by the National Tofu Factory has not been optimal. Based on the EOQ calculation, the amount of existing raw material inventory is smaller than what is recommended by the EOQ method. Therefore, additional raw material supplies are needed to support the smooth production process. The National Tofu Factory is also advised to provide adequate warehouses to store raw material supplies, especially for soybeans, so that they can accommodate more raw materials and reduce ordering costs.

PT ABC operates in the printing and publishing sector which produces magazines using a make to order system. The problem that often occurs is related to the fluctuating demand for SM magazines from March 2021 to February 2024. As a result of this condition, the company cannot estimate the amount of raw materials needed, so orders are made based on estimates only. This causes overstock, especially 1001 reams of 58 gram HVS paper. The research objective is to find out planning, inventory control, and ordering techniques that produce minimal costs. In this case, suitable methods to apply are Material Requirement Planning (MRP), lot size Economic Order Quantity (EOQ), Lot For Lot (LFL) and Period Order Quantity (POQ). From the proposed improvements, the minimum cost with Lot For Lot (LFL) was IDR 2.320.000. So, costs can be minimized to IDR 93.260.746 or 98% compared to the method used by the company.

The need for soybeans in Indonesia increases along with population growth, with demand reaching 2.7 million tons in 2023. Soybeans are an important raw material in the food industry, especially for processed products such as tempeh. This research aims to analyze the control of soybean supplies in the Bogor Regency Tofu and Tempe Cooperative (KOPTI) using the Economic Order Quantity (EOQ) method. The Economic Order Quantity (EOQ) method was chosen because it is able to optimize the costs of ordering and storing raw materials. Primary data was obtained through interviews with KOPTI owners and employees. The analysis results show that the optimal order quantity is 333,371 kg with an order frequency of 4 times per year. In addition, the safety stock required is 82,252 kg, and the reorder point is 85,865 kg. Using the EOQ method can save total inventory costs from IDR 14,332,491.57 to IDR 910,102.39. This research suggests KOPTI to apply the Economic Order Quantity (EOQ) method to increase cost efficiency and maintain stable raw material supplies.

This research was conducted to determine the economic quantity of raw material inventory and determine the amount of raw material inventory needed. This research is included in descriptive quantitative research using the Economic Order Quantity (EOQ) method. EOQ can achieve optimal inventory levels and overall cost reductions, thereby enabling businesses to achieve maximum profits. The subject of this research is the raw material inventory of Osha Snack Bogor. In using this EOQ technique, it can be concluded that cooking oil is the largest raw material inventory, which is 32.40% of the total inventory with an EOQ amount of 8485 liters. The next order of cooking oil should Osha Snack do when the inventory in the warehouse remains 38 liters.    

This research aims to produce compatibility between the policies of Abon Surya with the Economic Order Quantity raw material control method, namely the purchase quantity of the Abon Surya policy has an average purchase of 770 kg, for the frequency of purchasing raw materials for jack beans 5 times, for security and point supplies. There is no reordering policy with a total inventory cost of IDR 251,640. Meanwhile, the EOQ method has an average purchase of 1,313 kg. the purchase frequency is only 3 purchases, the security inventory is 90 Kg and the number of reorders is 204 Kg with a total cost of inventory required of IDR 173,254. The cost difference between Abon Surya and the EOQ method is IDR 78,386,417. This shows that there is a saving or reduction in the total cost of inventory needed if Abon Surya can implement the EOQ raw material control method. Apart from that, the packaging used at UMKM Surya Abon for shredded products still uses transparent plastic with stickers, which is less attractive to buyers. Therefore, a new design is needed to attract more buyers.

This research aims to produce compatibility between the policies of Abon Surya with the Economic Order Quantity raw material control method, namely the purchase quantity of the Abon Surya policy has an average purchase of 770 kg, for the frequency of purchasing raw materials for jack beans 5 times, for security and point supplies. There is no reordering policy with a total inventory cost of IDR 251,640. Meanwhile, the EOQ method has an average purchase of 1,313 kg. the purchase frequency is only 3 purchases, the security inventory is 90 Kg and the number of reorders is 204 Kg with a total cost of inventory required of IDR 173,254. The cost difference between Abon Surya and the EOQ method is IDR 78,386,417. This shows that there is a saving or reduction in the total cost of inventory needed if Abon Surya can implement the EOQ raw material control method. Apart from that, the packaging used at UMKM Surya Abon for shredded products still uses transparent plastic with stickers, which is less attractive to buyers. Therefore, a new design is needed to attract more buyers.

PT XYZ is an industrial company that produces tools. In this research, the problem that must be resolved, namely the issue of raw material inventory control that occurs at PT XYZ, will be resolved using the Economic Order Quantity (EOQ) method using POM-QM software. By using the Economic Order Quantity (EOQ) method, it is hoped that it can solve the raw material inventory control problems that occur at PT XYZ so that the costs incurred by the company are optimal. So, PT XYZ can solve the problem of controlling raw material inventory with the help of the POM-QM application to facilitate the calculation process. Based on the analysis and data processing that has been carried out, it is known that the optimal quantity of raw material A output per order is 150 units with a total cost of IDR 270,596,000 and a reorder point value of 7 units. For raw material B, the optimal quantity per order is 241 units with a total cost of IDR 2,439,490,000 and a reorder point value of 53 units. For raw material C, the optimal quantity per order is 94 units with a total cost of IDR 425,200,400 and a reorder point value of 7 units. For raw material D, the optimal quantity per order is 82 units with a total cost of IDR 217,229,600 and a reorder point value of 5 units. So the raw material that has the most influence in the tool making process at PT XYZ is B because it has the largest reorder point value.    

Inventory is crucial and very important in every production series. So good inventory management is needed to increase the optimization of production activities. Decision making in order to reduce risks in the warehouse if procurement of too many goods in a short period results in increased storage costs. This research proposes inventory management using the Economic Order Quantity method with the results for grinding blades, bolts and acetylene respectively being EOQ of 136.7; 154.9; and 42.42.    

The aim of this research is to find out and determine the optimal order quantity and frequency of ordering raw materials using the method Economic Order Quantity (EOQ) at Klontang Coffee & Resto. This research uses qualitative methods using data collection techniques through library research, field research including observation, interviews, documentation studies. The calculation results for Klontang Coffee & Resto based on data on raw material requirements and storage cost data as well as ordering costs using the Economic Order Quantity method are 14.4 kg, for the frequency of ordering raw materials is 0.83 orders in one year. 

Pabrik Roti Bakar merupakan salah satu UMKM yang bergerak dalam industri makanan yaitu roti tawar. Saat permintaan tinggi seringkali bahan beberapa pesanan tidak terpenuhi sedangkan ketika permintaan rendah seringkali bahan baku mengalami kerusakan. Berikut ini adalah data pendukung tidak terpenuhi permintaan tinggi yaitu pada September 2022 permintaan pemesanan sebanyak 21.070 pcs namun permintaan aktual hanya sebanyak 18.000 pcs atau sekitar 17% dari target yang tidak terpenuhi dan bulan Desember 2022 permintaan pemesanan sebanyak 23.030 namun permintaan actual hanya sebanyak 20.000 pcs atau sekitar 15% dari target yang tidak terpenuhi. Dalam penelitian ini menggunakan metode Material Requirement Planning (MRP) dengan menggunakan data dari September 2022 hingga Agustus. Data tersebut akan diolah untuk peramalan menggunakan minitab 19 dan kesalahan (error) peramalan diukur dengan MAD (Mean Absolute Deviation. Metode MRP yang dapat digunakan adalah teknik lot size Economic Order Quantity (EOQ) karena menghasilkan total biaya sebesar Rp 594.057. Perhitungan yang dapat diterapkan pada UMKM Roti Bakar yaitu dengan teknik lot size EOQ. Teknik ini dapat memimasi biaya persediaan bahan baku roti pada UMKM Roti Bakar.