AK5-X | Rejected (Decryption Content Unreadable)

AK5 “X” is a rejection tied to encryption/decryption handling. It typically indicates a mismatch in encryption settings, corrupted payload, or a partner-side parsing failure after decryption.

Step-by-step fix

1) Confirm encryption settings match the partner’s requirements (algorithm, key/cert, signing vs encryption).

2) Verify certificate chains and that the correct public key was used for encryption.