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What is inventory control?

Inventory control describes the activities, systems and procedures used to optimize an organization’s inventory levels.

Inventory Control Defined

Inventory control describes the activities, systems and procedures used to optimize an organization’s inventory levels. Through effective inventory control, it’s possible to make the best use of resources, including raw materials; components; work in process; finished products; and maintenance, repair and operating supplies.

How does inventory control differ from inventory management?

Inventory management is one aspect of business management (the coordination and organization of all business activities). Inventory control is an element of inventory management.

What makes inventory control critical to a supply chain?

Inventory control is critical to preventing overages, obsolescence, spoilage, waste, stockouts and disappointed customers. Avoiding these costly problems and others requires effective management of supply chain disruption, demand variation and risk.

Supply chain management professionals who earn the APICS Certified in Planning and Inventory Management (CPIM) designation are able to demonstrate their ability to apply inventory control processes in order to achieve supply chain resilience and agility.

inventory control

Types of inventory control systems

Organizations use inventory control systems to gain an accurate record of their inventory levels. There are two main types:

Periodic inventory

Periodic inventory describes counting an organization’s physical inventory at a recurring interval, often monthly, quarterly or annually. In general, this approach is best suited to organizations with small amounts of inventory because periodic inventories require people to count items manually — typically not the best use of an organization’s most valuable resource.

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Periodic inventory
Perpetual inventory

Perpetual inventory describes the continuous, automated tracking of an organization’s inventory in near-real-time. A program is used to monitor each item’s status and update its record within a database. Because perpetual inventory tools require specialized equipment and expensive software, this approach is usually best suited to organizations with higher inventory levels.

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Perpetual inventory

Example of how to use inventory control

Collins Aerospace, the West Palm Beach, Fla.-based business unit of United Technologies Corporation, used APICS CPIM education as its primary inventory control training program for employees. The company manages $4.3 billion in inventory, which can include variation and excess inventory in the supply chain. The knowledge gained from CPIM courses enabled employees to develop a set of standard inventory replenishment policies for all of Collins Aerospace’s manufacturing sites. These standards have led to improved service levels, reduced unnecessary inventory and provided buffer variation.