FREE TOOL
FIFO Compliance Checker
Paste your lot data or upload a CSV to check for FIFO violations.
Paste CSV data below. Expected columns: id, lot_date, sku, quantity
Why FIFO compliance matters
First-In, First-Out (FIFO) is not just an accounting method — it is a legal requirement in many industries and a critical factor in inventory accuracy. FIFO violations lead to inflated COGS, understated inventory values, and potentially incorrect tax filings.
The most common source of FIFO violations is concurrent writes to the same SKU without proper database-level locking. Application-layer FIFO logic breaks under load. The only correct solution is a database transaction that locks the relevant lot rows before selection.
NAND IMS enforces FIFO at the database transaction level, making violations structurally impossible. Learn how IMS handles lot tracking.