If Amazon is flagging your shipment with “Additional Quantities Encountered”, it usually means they received an item that was not included in your original shipping plan.
What This Means
This is not about duplicate quantities.
Instead, Amazon is saying:
An item was unexpected (not in your shipment plan)
That item was used to offset a missing item in your shipment
So even if your counts seem correct, Amazon believes something doesn’t match the plan.
Why This Happens
Even when you’re careful, this can happen due to:
❌ Wrong barcode or FNSKU applied to an item
❌ Items from a different batch/shipment getting mixed in
❌ Items scanned incorrectly during prep
❌ Amazon mis-scanning or receiving errors on their end
Why Your Dispute May Be Rejected
If Amazon says:
“Unexpected items were used to account for missing items”
They usually reject disputes, because from their perspective:
Everything “balances out” internally
They don’t see a net loss in inventory
How to Prevent This
To avoid this issue in future shipments:
✅ Double-check FNSKUs
Make sure every item:
Has the correct label
Matches the ASIN in your shipment plan
✅ Keep Batches Separate
Avoid mixing:
Items from different batches
Items from previous shipments
✅ Scan Before Boxing
If possible:
Do a final scan before packing boxes
Confirm every item matches the shipment plan
When to Reach Out
If this keeps happening even when you’re confident everything is correct:
It may be an Amazon receiving issue
We can help you review and build a stronger case 👍