Inventory Adjustment
An inventory adjustment is a manual or system-posted transaction that changes the recorded quantity, value, or status of inventory without creating a purchase order or running a full physical count. It corrects discrepancies between the book record and physical stock, including clerical errors, theft, damage, miscounts, reclassification to non-sellable, and cost revaluation.
On the manufacturing floor, an inventory adjustment corrects mismatches between physical material at line-side supermarkets, cages, or bins and the system balance caused by scrap, unreported issues, mispicks, receiving errors, or cycle-count variances. In warehousing, adjustments post to the specific item, location, bin, lot, or serial number so records reflect physically present stock at the deepest tracking level. Systems distinguish between changes to stock on hand and changes to unavailable/non-sellable inventory; the latter updates disposition without altering sellable quantity or value. Revaluation is a key case: quantity stays unchanged while unit cost or total value is corrected for costing and margins. Every adjustment should carry a reason code, audit trail, and approval workflow for traceability to breakage, damage, shrinkage, found stock, or count variance. The correction must stay aligned with lot traceability, expiry dates, warehouse location, and costing method, or it fixes the balance but breaks traceability or valuation integrity.
Does an inventory adjustment always change inventory value?
No. Some systems adjust both quantity and value for stock on hand, while others support non-sellable transfers or condition changes that do not alter stock value.
Why do lot-controlled environments require extra fields?
Because the adjustment must be posted to the correct item + lot + location combination to preserve traceability, expiry control, and auditability.
When should a cycle count be used instead of an adjustment?
A cycle count is the control activity used to validate the count; the inventory adjustment is the accounting/system correction that typically follows when variance is confirmed.