I would like to customize the field ESLL-TBTWR (Service Price) as mandatory in Service Purchase Requisitions.
I'm new with ABAP, the code that I need is something like below
Data: L_PSTYP type MEREQ_T_EBAN-PSTYP,
L_TBTWR type ESLL-TBTWR.
IF L_PSTYP = '9' and L_TBTWR is initial.
MESSAGE e999(sy) WITH text-m02.
Could anyone give me sugestions?
Thanks in advance,