When channel quantities disagree, begin with a single documented discrepancy. A broad change to every stock figure can obscure the cause and create more work.
Trace the affected product
- Record the marketplace, seller SKU, storefront variant and physical pack size.
- Save each report's export time and quantity definition.
- Identify orders, cancellations, returns and transfers between the report times.
- Check whether a quantity includes reservations or inventory that cannot yet ship.
- Look for duplicate identifiers or a bundle mapped as a single item.
Amazon's inventory report guidance notes the snapshot nature of reports. Compare the intervening movements before concluding that a connector or location balance is wrong.
Correct the record deliberately
Write the explanation for the difference and identify the source that supports a correction. Apply only the permitted correction, then inspect the channel records again. Keep the movement record and resulting balance together.
If the discrepancy recurs, assign a review of the mapping, reservation rule or handoff involved. An exception process needs a responsible person and a clear evidence trail; a connection alone is not enough to establish accurate stock records.