January 24, 2023
Tips on How to Resolve AES Response Messages
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. Though the shipment is accepted, the filer may still receive a Verify Message, Compliance Alert, Informational Message or Warning Message along with their ITN. However, if the shipment is rejected, a Fatal Error notification is received and must be corrected to receive a valid ITN.
To help you take the appropriate action for the different AES Response Messages, here are some tips on how to address the most frequent messages that were generated in AES for this month.
Response Code: 171
Narrative: Transportation Reference Number Not Allowed for MOT
Severity: Fatal
Reason: The Transportation Reference Number is not allowed to be reported for the Mode of Transportation reported for this shipment.
Resolution: A Transportation Reference Number is required for vessel shipments and allowed for air, rail or truck shipments. A Transportation Reference Number cannot be reported for a shipment using any other mode of transportation (i.e., mail, fixed or other).
Verify the Mode of Transportation Code and Transportation Reference Number, correct the shipment and resubmit.
Response Code: 501
Narrative: Export Information Code Missing
Severity: Fatal
Reason: The Export Information Code was not reported.
Resolution: An Export Information Code must be reported on every shipment. For a complete list of Export Information Codes, refer to ‘Appendix E – Commodity Filing Export Information’ of the AESTIR.
Verify the Export Information Code, correct the shipment and resubmit.
For a complete list of AES 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 postdeparture but not later than five calendar days after departure.
For further information or questions, contact the U.S. Census Bureau’s Trade Data Collection Branch.
Telephone: (800) 549-0595, select option 1 for AES
Email: askaes@census.gov
Online: www.census.gov/trade
Blog: blogs.census.gov/globalreach
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