Issue with BAM continuation for biztalk

I have developed a BizTalk Application, which receives a xml file and after applying the business logic, it sends the file to another location using FILE adapter. I need to track the start and end time for both Receive Port and Send Port. I have created BAM activities and view and have created a tracking profile using Tracking Profile Editor. I have used Interchange ID as continuation ID token.

The problem is that in the BAM tracking, I am getting two rows, one for the receive port and second for the send port. The continuation between receive and send port is not working.

Please suggest.

What I have tried:

I have created a Continuation with receive port mapping in the interchange ID and Continuation ID (named as Continuation) with send port mapping in the Interchange ID.