Extension of BAPI's

Question

Baseline Information:
-- We are running SAP ECC v6.
-- We have added two new columns to the Equipment Master database, on the EQUI table.  These columns are entitled GUIDNO and Z_GISGRID.  These columns were added to the EQUI table within the SAP-delivered customer Include entitled "CI_EQUI".
-- we've looked at the method using "Extension In" and "Extension Out" parameters.  The BAPI's were not configured by SAP to include these parameters.  Plus, we not sure we completely understand the use of these parameters to extend the BAPI if we were to create the extensions ourselves.
Challenge:
We want to add the ability to update these columns from the SAP-delivered BAPI's BAPI_EQUI_CREATE and BAPI_EQUI_UPDATE.  We also want to include these columns in the return structures from the BAPI_EQUI_GETDETAIL call.
We are struggling with modifying these BAPIs to include these columns in such a way that the BAPIs will still "survive" a future upgrade.  What is the SAP-prescribed method for adding new columns to these BAPIs?

Answer 1

Hi,
you can try to enhance the BAPI  using enhancement framework - particularly enhance function module interface and implicit enhancement points. Recently I briefly described how you can do it for BAPI BAPI_BILLINGDOC_CREATEMULTIPLE. Have a look at [this thread|Extend BAPI_BILLINGDOC_CREATEMULTIPLE?;. Similarly, you can add an optional structure/table to BAPI interface and then find a suitable enhancement point to populate standard table.
Cheers