Azure Integration account AS2 sync MDN issue

Question

I am performing a POC using Azure Integration account AS2. I have an issue with sending the sync MDN Message back. I am using Mendelson to perform the testing

• Sending a signed and encrypted message to Azure Logic App works
• Decoding the message and validation works
• Sending the sync MDN back is giving an error in Mendelson Issue

Message send back by Logic App

Answer 1

Found the issue:

Response Body should be:

"body": "@base64ToString(body('Decode_AS2_message')?['OutgoingMdn']?['Content'])"