Revision 1.18 of the AES Export Declaration Web Services guide has been published for the exchange of information between operators and Customs in the new AES (Automated Export System). This guide contains the messages of the external domain (communication between the Economic Operator and the Tax Agency) of the national component of the Automated Export Declaration System AES, as well as the adaptations that may be necessary to improve the National Export Systems in line with the Union Customs Code (UCC).

This new revision changes certain rules of the CC515C and CC507C services, but the main new feature is that it allows discrepancies to be declared in the CC507CEnt message for foreign exports, and establishes the obligation, as of May 6, to ## replace the original container identifier in the CC507CEnt message that had the value “DISCREPANCIACC507” or “DISCREPANCIA” with the actual identifier of the container that is presented at the customs office of exit, for Spanish or foreign exports.

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