BADI ME_PROCESS_PO_CUST Method Post

Question

Hi, how can we know in the method post of the BADI ME_PROCESS_PO_CUST if we are in creation mode (me21n) or change mode (me22n), I need to do some coding only at the creation of the PO but this method is call anytime we click save!
thanks!

Answer 1

Hello Alexandre
It would be possible to check the transaction. However, if the BAPI BAPI_PO_CREATE is used the BAdI is also processed yet the transaction is most likely wrong.
An <u>unambigous </u>approach is to check IMPORTING parameter IM_TRTYP in method IF_EX_ME_PROCESS_PO_CUST~OPEN:
METHOD if_ex_me_process_po_cust~open.
* define local data
  DATA:
    lo_po          TYPE REF TO cl_po_header_handle_mm,
    ls_header      TYPE mepoheader.
  me->md_trtyp = im_trtyp.  " save transaction type
  IF ( im_trtyp = 'H' ).  " add new purchase order
I would add an instance attribute MD_TRTYP to the BAdI implementing class and save the transaction type in method IF_EX_ME_PROCESS_PO_CUST~OPEN (see above).
Now you can simply add the following IF condition to your POST method:
METHOD if_ex_me_process_po_cust~open.
  CASE me->md_trtyp. 
    WHEN 'H'.    " add new purchase order
  ...  " do required action for CREATE
    WHEN ... .
    WHEN others.
  ENDCASE.
The possible transaction types can be found at: im_trtyp -> data element -> <b>domain </b>(fixed values).
Regards
  Uwe