SAP Function CHECK_PLAN_BEFORE_DELETE - Check whether task list or group can be reorganized

Parameter	Reference	Type	Length	Default	Optional	Text
PLNAL_IMP	PLKO-PLNAL	C	2	SPACE	X
PLNNR_IMP	PLKO-PLNNR	C	8
PLNTY_IMP	PLKO-PLNTY	C	1

Exception	Text
PLAN_IN_USE