Dear friend,
I want to preverify the cancel billing document process via VF11. If the FI period is closed, the cancel billing document (which refers to closed period) process is not permitted.
I found the user exit: SDVFX001 (User exit header line in delivery to accounting) and implemented / activated it already.
My user exit is work, the cancel process of old billing document is denied, but !!! I found that the number range of cancel document is reserved already (but the document is not create). So the number range of cancel document is skip in the next time when I cancel other billing document....
Are there any exit or BTE to prevent this case?
Thank you in advances,
Sam.