Diagnosis
Encryption to IDocs of payment card numbers that were sent from POS DataManagement to other systems, or vice-versa, failed because the IDoccategory does not have any suitable segment definition that can acceptthe reference for the encrypted object.

System Response
Payment card numbers are not encrypted.

Procedure
Check note 1116209.
For IDoc category WPUBON01 you need segment definition E2WPB06003, andfor IDoc category WPUTAB01 you need segment definition E2WPZ02003.