Amazon ASN Accuracy Chargeback
What triggers it, what it costs, and how to stop it
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The penalty
2-6% of COGS, per non-compliant shipment
Varies by severity and region.
Consulterce / vendor sources, 2026
02 / 10It is not one chargeback. It is five →
ASN accuracy
Five sub-types
On-Time Non-Compliance
ASN arrived after the truck did.
Unit Count Mismatch
ASN quantity doesn't match physical receipt.
Invalid / Missing ARN
Amazon Reference Number is wrong or absent.
Missing Expiration Date
Consumable SKUs shipped without expiry in the ASN.
PRO/BOL Mismatch
Carrier tracking doesn't match the shipment.
03 / 10
One shipment, two chargebacks →
The compounding problem
One shipment can trigger more than one
A late ASN with a wrong quantity is two chargebacks, not one. Each sub-type fires independently.
A multi-PO delivery with one bad reference field can generate charges across every PO on the truck.
The penalty compounds. The root cause is usually singular.
04 / 10
Timing requirements
Two windows to hit
30 minutes
Submit the ASN within 30 minutes of the shipment leaving your facility.
Measured from carrier pickup, not order confirmation.
6 hours
Or at least 6 hours before the scheduled delivery appointment at the FC.
Missing either window triggers OTNC, regardless of ASN content accuracy.
05 / 10
The root cause most suppliers miss →
The root cause
Your ERP fires the ASN from the order, not the pick
The order says what should ship. The pick confirms what did. If those two numbers disagree, the ASN built from the order is wrong before it transmits.
The fix is in the ERP workflow, not on the warehouse floor.
06 / 10
Can you dispute it? →
Dispute path
30 days to dispute a chargeback
From the notification date, filed through Vendor Central.
Where
Reports > Operational Performance > defect list > select transaction > Dispute.
Attempts
Two per chargeback. If the first is denied, refile within 30 days of the denial.
07 / 10
What evidence do you need? →
Evidence checklist
Gather before you file
ASN transmission log
What was declared per unit and per carton in the EDI 856.
Pick-confirm records
The actual quantity that left the dock, from WMS.
Carrier documentation
PRO/BOL matching shipment to the correct FC.
Lot and expiry records
For expiration-date chargebacks: WMS records for shipped units.
08 / 10
The prevention blueprint →
The ERP prevention blueprint
The fix lives in the SN1 segment
The ASN quantity segment must pull from the confirmed pick, not the original PO quantity.
Gate EDI 856 generation behind the ship-confirm event. Block transmission on any mismatch. For consumables, require a non-null expiration date before the 856 can fire.
09 / 10
Pixels and Clicks
CPG deduction recovery and compliance diagnostics
Full ASN Accuracy breakdown with sources, evidence checklist, and ERP blueprint on our site
14-day root-cause audit traces every chargeback to its origin
Free OTIF calculator to size your annual exposure before you commit
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