Can I handle the outgoing AS2 MDN in a sync fashion ?

Question

... before they are returned to the partner using the same http connection ?
As per the guide, it tells me there is no subscription to the messagebox. I need to capture the outgoing sync mdn before it is sent to the partner (connected to a request-response port), pretty much as we are doing so today with the outgoing async mdns.
Fabrikam will send us a message, the receive pipeline will validate, I need to handle the mdn resolution just before it goes back throught the as2 send pipeline. Is this possible ?

Answer 1

Hi René,
Not tried it personally but I hope you can. I am not sure whether you can edit the disposition. But handle it like access it context properties etc.
Give it a go..
In case of synchronous mode, the MDN will
generated by the AS2 Decoder in the AS2Receive receive pipeline. You will get
MDN message (if enabled) as well as payload message
after the disassemble stage. Here (may be in party resolution stage) you can create a custom pipeline component to handle the MDN as per your requirement. At this stage you will have both the
MDN and AS2 message-payload, so you have to differentiate whether it’s a MDN or payload by the following code:
if (!(bool)inmsg.Context.Read("IsAS2PayloadMessage", "http://schemas.microsoft.com/BizTalk/2006/as2-properties"))
//Then this is a MDN not a AS2-Payload message
//Handle the MDN here..
Once the MDN has been generated (after you handle it), AS2 Encoder of AS2 Send pipeline
acts as a passthrough pipeline and route the MDN.
Refer
this BizTalk Hotrod magazine and check the “Custom Pipeline Component for Promoting Properties” section where the
author handle the payload where as in your case you have to handle the MDN.
Regards,
M.R.ASHWINPRABHU
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