Orchestration instances waiting for a response message or an exception will remain dehydrated. Even if Order Delivery is turned on, the send port may continue to send subsequent messages instead of queuing all messages while waiting for the ACK.
This issue occurs when one of the standard set of ACK codes is selected from the Acceptable ACK Codes property.
Additionally, you may receive the following error message:
Cumulative update information
For BizTalk Server 2013 R2The fix that resolves this issue is included in Cumulative Update 5 for BizTalk Server 2013 R2.
Note The fix restores the correct behavior for standard ACK codes to be consistent with the release version of BizTalk Server 2013 R2.
Article ID: 3202705 - Last Review: 14 Nov 2016 - Revision: 1