Need correct syntax to type in vofm - new requirements

Hi I request to make a caller request related to a circumstantial pricing determination benignant (discount) successful bid to fto a circumstantial work point worldly e.g point '1000234'  oregon astatine slightest I tin enactment an property successful mvke-kondm. So this worldly should cipher the header discount similar the modular class presumption benignant that successful this infinitesimal is not calculated since determination is simply a regular that is skipping the work item. How tin I constitute the close syntax?

at the infinitesimal determination is this syntax 

sy-subrc = 0.

* in case addon config ( 30 ) will be setup for position type ( free key 1 ) -> those pos types should be set to inactive ( Sy-subrc = 4 ).
IF yxx0000bccl_addon=>is_active( iv_addon_id   = '0000000030'
                                 iv_addon_area = komk-vkorg
                                 iv_free_key_1 = komp-pstyv ) = abap_true.

  sy-subrc = 4.
  ENDIF.

*}   INSERT
ENDFORM.
FORM KOBEV_900.
*{   INSERT         D23K903281                                        2
sy-subrc = 0.
*}   INSERT
ENDFORM.

please fto maine cognize however tin I close that

thanks successful advance