Greg,
I think I found the problem although I have not had chance to look for solution yet.
When I send Select Query request to database, the send shape requires an initial message. I don’t have one. I used NULL in the expression in Message Assignment shape to initialize the message.
I’m currently working on another project and may not be able to work on this BizTalk for a while. I’ll appreciate it if you have some advice on how to initialize the send message.
Thanks.
Lynn