Every retailer we work with in Korea reports the same frustration: the e-commerce platform shows 14 units available, the warehouse system shows 22, and the store manager counts 9 on the floor. None of these numbers is wrong — they are measuring different moments in the fulfilment chain.
The most frequent gap comes from pending marketplace orders. A customer may complete checkout on a third-party marketplace while the warehouse has not yet deducted the unit from available stock. Lag times of 45 to 90 minutes are normal; beyond two hours indicates a sync failure.
Returns in transit create the second major discrepancy. A garment returned to the warehouse may sit in a quarantine bin for 48 hours before re-entering sellable inventory. During that window, online channels often still list the item as out of stock.
Store transfers without same-day WMS updates cause floor count drift. When a Gunsan location sends three units to a Seoul sister store, the sending store's count drops immediately but the receiving store may not scan them until the next morning.
Our inventory visibility consulting sessions walk ops teams through a reconciliation checklist: pending order report, returns quarantine log, in-transit transfer manifest, and floor count variance threshold. Most teams reduce mismatches by 60% within one quarter of applying this routine.