When you run into this:
Make sure you enabled tracking on the events you want to track, but also important is to have a look at the SQL job TrackedMessages_Copy_BizTalkMsgBoxDb (and of course your SQL Agent must be running). If the interval is too small, then it is possible your messages have been purged (“(3) the Message Box tracking tables have been automatically purged”). Decrement your interval (default is 1 minute):




