Question about function EXIT_SAPLMEREQ_010 in user exit MEREQ001 for Purchase Requisition

[former_member607412]

Hi All,

I'm trying to implement this user exit, with a customer tab with one ZZ field in the CI_EBANDB structure. Now there'll be a change to this field when a specific condition fails during 'Check' function in PR. Thus I figured the function EXIT_SAPLMEREQ_010 gets called when Checking or Posting the PR.

So I call the following code in this function:

DATA(lt_req_items) = im_req_header->get_items( ).

LOOP AT lt_req_items ASSIGNING FIELD-SYMBOL(<fs_req_item>).
     DATA(l_req_item) = <fs_req_item>-item.
     DATA(l_mereq_item) = l_req_item->get_data( ).
.
.
.

    l_mereq_item-zzfield = 'X'.
    CALL METHOD l_req_item->set_data( l_mereq_item ).
ENDLOOP.

And in the PBO function for the customer data tab, EXIT_SAPLMEREQ_001, I want to show this result with a checkbox:

* read item data from system
  DATA(ls_mereq_item) = im_req_item->get_data( ).

* fill customer field with old values
  ci_ebandb-zzfield = ls_mereq_item-zzfield.

ci_ebandb-zzfield is the field I've put in the dynpro 0111 as required. I've also written appropriate code in the PAI function EXIT_SAPLMEREQ_003.

The issue is, the get_data in EXIT_SAPLMEREQ_001 doesn't retrieve the changed value of zzfield as I've supposedly 'saved' using the set_data in EXIT_SAPLMEREQ_010. When debugging, it does go through this code without any errors, but then not sure where does it get lost.

Any ideas, what might be going wrong here?

[pataselano]

Please refer to https://blogs.sap.com/2017/10/27/add-custom-field-to-purchase-requisition-mereq001/

[former_member607412]

Thanks Andy,

But your blog doesn't answer my question at all.

1. The SMOD documentation does not mention anything about the 'new' function EXIT_SAPLMEREQ_010.
2. The rest of the code you've mentioned in your blog are the basics of using this user exit, which I've done already, as mentioned in my question above.

[pataselano]

Base on SAP note 310154, EXIT_SAPLMEREQ_010 is available to create your own messages.

If you want change z-field value base on specific condition, please use BAdI ME_PROCESS_REQ_CUST-PROCESS_ITEM.