New e214 Error Code Validation for Post Admission Corrections and Updated Appendix P

On August 13, 2026, U.S. Customs and Border Protection (CBP) will implement a new e214 error code for Post Admission Corrections validation to the Automated Commercial Environment (ACE) Production environment.
The ACE Appendix P – e214 FTZ Admission Error Codes will have the following updates:
 * Added new error code 237 
 * Deleted 16 error codes that were “no longer used” 
An updated version of the ACE Appendix P is available and can be found in the Appendices section of CBP.gov: https://www.cbp.gov/document/guidance/ace-catair-appendix-p-ftz-error-messages
For technical questions, please contact your assigned CBP Client Representative or your local Port of Entry.
For questions about this CSMS please contact CREM@cbp.dhs.gov.