|When trying to send a message to multiple request response ports you can receive the following error in BizTalk:
The message found multiple request response subscriptions. A message can only be routed to a single request response subscription.
|First of all, you’ll need to reconsider if it’s architecturally sound to route a message to two request response ports? if yes, read further
hot fix available at location http://support.microsoft.com/kb/923632
1) Inside the BizTalk administration console open the BizTalk Settings Dashboard
2) Go to the tab for the hosts settings, and select the host used by the request response ports.
3) Check the checkbox for property Allow Multiple Responses