Are you related to In User EXIT MV45AFZZ..I need to create line item based on Pricing Condition (KONDM) ?
As I wrote there, for check use USEREXIT_CHECK_VBAP (Include MV45AFZB). the USER_EXIT_MOVE_FIELD_TO_VBAP will not be executed on already existing lines, so it won't be executed for line '000010' or modified lines. You could also consider looking for this line '000010' in internal table xvbap.
Regards,
Raymond