The message audit can be implemented by BizTalk Tracking (BizTalkDTADb) database. But there is one big "But". This database has predefined, undescribed structure, it should be used only by special BizTalk tools as HAT. We cannot change the audit points, cannot freely create user queries, cannot change structure of this database. It is not so hard to create the custom audit, it is the standard practice to make the custom audit database and gather data for it from the BizTalk application with additions ......