Defined custom subscreen(SAPLXBAS 8100) for service master AC01. User Exit is activated , however the line of code inthe main screen which calls the subscreen is not being called at runtime. Details are as follows
UserExit : SRVASMD
Calling screen No. Area Called screen No.
SAPLBAS0 0300 ZUSATZ SAPLXBAS 8100
this is the line which is being ignored while executing the transaction ac01
CALL CUSTOMER-SUBSCREEN ZUSATZ INCLUDING 'SAPLXBAS' '8100'.
Any inputs appreciated and points would be awarded