Glossary
What is Perpetual Inventory?
Last updated July 2026
Definition
Perpetual inventory continuously updates stock records with every receipt and issue, versus periodic counts. It's the basis for trustworthy, real-time inventory decisions.
Without perpetual accuracy, book quantities drift from the shelf, driving phantom stockouts and duplicate orders.
Cycle counting keeps a perpetual system honest between full physical counts.
Part of Excess & obsolete inventory.
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