- Book Inventory
- The quantity of a SKU recorded in an accounting or inventory management system, based on transactions rather than a physical count.
- Physical Count
- The actual quantity of a specific item found on the shelf, bin, or floor during a manual or scanner-assisted count.
- Variance
- The numerical difference between book inventory and physical count for a given SKU β positive when physical exceeds book, negative when book exceeds physical.
- Cycle Count
- A scheduled, ongoing process of counting a rotating subset of SKUs rather than shutting down operations for a full stocktake.
- Shrinkage
- Inventory loss attributable to theft, damage, administrative error, or vendor fraud β expressed as a percentage of cost of goods sold.
- SKU (Stock-Keeping Unit)
- A unique alphanumeric identifier assigned to a specific product variant for tracking purposes in purchasing, sales, and inventory systems.
- Adjustment Entry
- A corrective journal entry or system transaction that updates book inventory to match the verified physical count after reconciliation.
- Root Cause Analysis
- The structured process of tracing a discrepancy back to its origin β receiving error, picking error, theft, system lag, or data entry mistake.
- FIFO / LIFO
- First-In-First-Out and Last-In-First-Out β inventory costing methods that affect the dollar value assigned to stock on hand and cost of goods sold.
- Dead Stock
- Inventory that has not moved within a defined period and is unlikely to sell, often requiring write-down or write-off in the reconciliation process.
- Bin Location
- A specific, labeled storage position in a warehouse or stockroom used to track exactly where each SKU is physically stored.