Business situation
A promotion starts while stores continue selling. Different product codes and delayed releases make the available quantity unreliable.
The key decision
Trace receipt, reservation, dispatch and returns. Assign one inventory owner and distinguish a sales promise from physical stock.
How implementation works
Map product identities, reserve stock per order and release expired holds. Deduplicate notifications and queue failed updates for recovery.
Business value and evolution
Teams can trace shortages and adjustments. New channels reuse the same ownership rules, exception handling and acceptance scenarios.