Tips on How to Resolve AES Fatal Errors



When a shipment is filed to the AES, a system response message is generated and indicates whether the shipment has been accepted or rejected.  If the shipment is accepted, the AES filer receives an Internal Transaction Number (ITN) as confirmation.  However, if the shipment is rejected, a Fatal Error notification is received.

To help you resolve AES Fatal Errors, here are some tips on how to correct the most frequent errors that were generated in AES for this month.


Fatal Error Response Code:  643

  • Narrative: Quantity 2 Must Be Greater Than Zero
  • Reason: The Schedule B/HTS number reported requires a second Quantity to be reported and the Quantity 2 is missing or reported as zero.
  • Resolution: Quantity 2 must be greater than zero.

Verify the Quantity 2, correct the shipment and resubmit.


Fatal Error Response Code:  649

  • Narrative: Quantity 1 Cannot Exceed Shipping Weight
  • Reason:  Shipping Weight is reported in kilograms.  When the Unit of Measure 1 requires kilograms, the first net quantity (Quantity 1) cannot exceed the Shipping Weight.  Ensure the Shipping Weight includes the weight of the packaging materials.
  • Resolution: The first net quantity (Quantity 1) in kilograms cannot exceed the Shipping Weight in kilograms. Verify the Quantity 1 and Shipping Weight, correct the shipment and resubmit.

For a complete list of Fatal Error Response Codes, their reasons, and resolutions, see Appendix A – Commodity Filing Response Messages.

It is important that AES filers correct Fatal Errors as soon as they are received in order to comply with the Foreign Trade Regulations.  These errors must be corrected prior to export for shipments filed predeparture and as soon as possible for shipments filed post departure but not later than five calendar days after departure.

For further information or questions, contact the U.S. Census Bureau’s Data Collection Branch.