Selling through several channels requires a consistent view of available stock. A physical count is not the same as the quantity available to promise when reservations, damaged goods and pending orders are involved.
Define which system controls availability and how each channel receives updates. Include reservations, returns and canceled orders in the synchronization rules. Test what happens when an update is delayed or a channel is temporarily unavailable.
Monitor overselling, synchronization delay and canceled orders. Adjust the delivery promise when stock or capacity is uncertain. Keep an exception process so a data problem does not silently become a promise the warehouse cannot meet.
Open Sources Used
This page uses open and institutional references as a frame; the final decision still belongs to the company record, threshold and owner.
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Reading adjacent decision areas keeps the topic from becoming an isolated note.