Additonal partner functions at the business agreement

Question

Hi Experts,
We have a requirement to pass on one of the partner functions to the clerk responsible field at the contract account in IS-U.
For this ,we want to use the additional partner functions section at the buisness agreement level in CRM.
We have maintained the partner function which we want to replicate in IS-U in the configurations settings for IS-U under the following path-
SPRO->Financial Accounting->Contract Account AR&AP->Integration->Customer Relationship Mgmt->Buisness Agreement->Define determination of Clerk responsible for Replication from CRM.
Now the problem, is when we are giving the partner function along with the business partner value in the "addtional partner functions" section under the BA tab in CRM,and saving it , the changes are not getting saved and no B-Doc is getting fired.
However, when we are using any other partner function like alternate payer, dunning recipent in the same BA tab and saving it, it is working fine and the partner function value is replicated in the clerk responsible field at the contract account in IS-U.
Can anyone please help me in solving the issue?
Thanks in advance.
Cheers,
Amlan

Answer 1

Try use BADI BUPA_GENERAL_EXPORT. In method GENERAL_DATA_EXPORT you can check main BP data and raise error.
Example for method if_ex_bupa_general_export~general_data_export:
DATA: l_but000 TYPE but000,
        return TYPE bapiret2.
  SELECT SINGLE * FROM but000 INTO l_but000
    WHERE name_last = is_but000-name_last
    AND   name_first = is_but000-name_first.
  IF sy-subrc IS INITIAL.
    return-type = 'E'.
    return-id = 'BC'.
    return-number = '701'.
    return-message_v1 = 'Check error'.
    APPEND return TO ct_return.
  ENDIF.