Here we are using email for order acknowledgement to the sales reps in PDF format. Whenever the email is generated the subject line is some thing not related to the transaction.
Now the client requires subject line to be changed to a sensible meaning so that the rep can understand the mail without going in to the mail.
The whole process is done Using the Output type XXXX with external send mode. We have debugged a lot but couldnot be able to find out the Function module which generates the Email.If any one had gone with the same problem earlier can surely suggest us the Function module or atleast the Field name which carries the subject line in VA01 or VA02. All we need is the Function Module name used in the VA02 or VA01 to generate the Email.