BADI - ME_PROCESS_PO_CUST - To update Condition Types at time of creation

Question

Hi All
I'm relatively new to Implementing BADIs. I'm using the BADI ME_PROCESS_PO_CUST.
I have to update certain condition types with values determined from a custom table maintained for related Vendors.
I have created a 'Z' implementation for ME_PROCESS_PO_CUST and activated the implementation. But when I try to create a PO, the code doesn't seem to be execute!
Following is the code bundle -
METHOD if_ex_me_process_po_cust~process_header .
  DATA : l_items TYPE purchase_order_items.
  DATA : l_single TYPE purchase_order_item.
  DATA : l_item_cond TYPE mmpur_tkomv.
  CALL METHOD im_header->get_items
    RECEIVING
      re_items = l_items.
  LOOP AT l_items INTO l_single.
    CALL METHOD l_single-item->get_conditions
      IMPORTING
        ex_conditions = l_item_cond.
  ENDLOOP.
ENDMETHOD.       "IF_EX_ME_PROCESS_PO_CUST~PROCESS_HEADER
Could you please give me your inputs on this?
Regards
Kripal
[email protected]

Answer 1

Kripal,
       The method PROCESS_HEADER gets trigerred only when you make an entry in any of the header fields and then press ENTER or do some action.
For a simple case of analysis put a break-point at
CALL METHOD im_header->get_items
RECEIVING
re_items = l_items.
in your code.
Now if you execute ME21N you will see that the code will not get triggered.But make an entry for one of the fields say fpr purchasing organisation.Now if you press ENTER or click on any other tab your code will get triggered.
Hope this helps.
<i>Reward helpful answers</i>
Cheers
Nishanth