Hi,
so, Dave thanks, that clarified that I got the BAdI right and have to take care reading DP data on my own.
Thomas, with data proposal I already can insert some text (based on FTO etc.) in the header text of my customs document. But as there is a limitation of 100 chars for that data proposal text, I have to replace that data proposal text with a standard text (in that BAdI).
That´s why. Maybe a really specific request, but with your infos I think I can get it run, although more coding is needed than I hoped.
Thanks a lot, Tobias