In multiple BizTalk server environment, it is pretty common to re-register another BizTalk server on BAS site, and the process could be tricky sometime if you don't want to undeploy anything from BizTalk solution. The following are the steps need to be performed, 1. Open BizTalk Explorer -> Role -> Sender - Delete all2. Go to TPM Management Tools -> http://localhost/BASSite/Li... and inactivate all agreements.3. Go to TPM Management Tools -> Partner Profiles ->...