First at all, I'm ABAP and I'm previously asking apology if this question is so simple for you. But I'm stuck on this issue for more than one day and I was thinking if it is possible to solve with customizing change.
I have a Z message type to send billing document by email. That's working properly except that the body is not filled. So, that's the request, create a body message. Fill the body. If I try to use the Z program and use a function to send it out the email will be sent twice: one from my code one from standard code.
My question here is whether the body text can be filled using customizing or not?