Create a purchase order with configuration using the BAPI

This took some time to figure out how to setup. It may be useful.

call function 'BAPI_CFG_CREATE'
  exporting
    object_id     = 'MYMATCODE'
    root_type     = 'MARA'
    root_name     = 'MYMATCODE'
    plant         = 'MYPLANT'
  importing
    cfg_handle    = l_handle
    root_instance = l_instance
  exceptions
    error         = 1
    others        = 2.


l_characts_vals-atnam = 'WIDTH'.
l_characts_vals-atwtb = '500'.

append l_characts_vals to it_characts_vals.

call function 'BAPI_CFGINST_CHARCS_VALS_SET'
  exporting
    object_id         = 'MYMATCODE'
    instance          = l_instance
  tables
    characts_vals     = it_characts_vals
    characts_vals_err = it_characts_vals_err.

call function 'CE_C_SET_CBASE'.

...
l_poitem-int_obj_no = l_handle.
...

call function 'BAPI_PO_CREATE1'
   exporting
    poheader  = l_poheader
    poheaderx = l_poheaderx
   importing
    expheader = l_expheader
    exppurchaseorder = l_exppurchaseorder
   tables
    poitem      = lt_poitem
    poitemx     = lt_poitemx
            poschedule  = lt_poschedule
            poschedulex = lt_poschedulex
    return      = lt_return.


call function 'BAPI_TRANSACTION_COMMIT'.