Tips on How to Resolve AES Fatal Errors

Fatal Errors

March 19, 2018

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:  138

Narrative:      Port of Unlading Missing

Reason:          The Port of Unlading Code is missing.  All vessel shipments, and any air shipments between the United States and Puerto Rico must provide a Port of Unlading Code.  

Resolution: The Port of Unlading Code is the foreign port where the exported merchandise is unloaded from the exporting carrier.  Report a valid Port of Unlading Code for all vessel shipments, and any air shipments between the United States and Puerto Rico.  

Verify the Port of Unlading Code, correct the shipment and resubmit.

Fatal Error Response Code:  561

Narrative:      DDTC License Number Unknown

Reason:          The License Code/ License Exemption Code reported requires a Department of State/ Directorate of Defense Trade Controls (DDTC) license number, but the DDTC license number reported is unknown in AES.

Resolution: The DDTC license number reported must be valid in AES.  

Verify the DDTC license number, correct the shipment and resubmit.   

For further assistance, contact the licensing agency.  The Department of State/ Directorate of Defense Trade Controls / DDTC Help Desk can be reached on 202-663-2838. 


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 postdeparture but not later than five calendar days after departure.

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