Hi Omar
Follow the steps for your requirement..
In table MAPL pass the fields MATNR( material number), WERKS (Plant), PLNTY(Task List Type) and get the fields PLNNR (Group), PLNAL(Group Counter).
In table PLAS pass the fields PLNTY(Task List Type), PLNNR (Group), PLNAL(Group Counter) and get the fields PLNKN (Task list node), ZAEHL( Counter). These fields can have multiple values.
Then in table PLPO pass the fields PLNTY(Task List Type), PLNNR (Group),PLNKN (Task list node), ZAEHL( Counter) and get the required fields BMSCH (Base Quantity),LAR01 to LAR06 are activities, VGW01 to VGW06 are activity values.
Regards
Kesava