Hi All ,

When we received AS2 Message from partner, we will send the MDN to them.

As it is asynchronous model we will have dedicated send port for sending MDN to them with the filters having the AS2 ID of the partner, so that whenever we got the AS2 Message from Partner, we will extract As2 Message header properties and create the MDN message and store it in the Message Box, and our MDN send port subscription which is already in message box and BizTalk make this correlation and get the MDN message and send this MDN message to Partner.

But we are sending the MDNs to them when they sent the As2 Messages but it is having expired status at partner.

I have seen this issue happened at partner level due to below issues.

1. We are sending the MDN to them with the different certificate other than the certificate which was configured at partner end.

2. We are having the some string attached to AS2ID in the send port filter , ideally it should not go to partner, but BizTalk is sending the MDN to them , but for partner it was coming as expired.

Regards,

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