I am trying to update two fields in the header of a billing. I am using Customer Exit SDVFX001 (EXIT_SAPLV60B_001) but when I update the field VBRK-KDGRP the updated value does not save on the billing document. I am changing another field on the header (BZIRK) and two fields on the line item and all three of those fields update but VBRK-KDGRP does not. Does anybody know why it won't populate with the new data?
Regards,
Davis