How to use BADI FI_AUTHORITY_ITEM (New to badi's)

Question

Hi all,
I don't know if this is 100% FI (it is not for sure), but I believe that here is the best place to ask.
I'm trying to had a new authorization check on FB03.
The authorization check is regarding object F_BKPF_BLA (that exists, but is not checked on the standard call of FB03).
I've discovered the BADI FI_AUTHORITY_ITEM, but now I have one question. How do I had this check here? Is it necessary to create an ABAP with an authorization check?
Or is there any simplier solution?
Thanks!

Answer 1

In the meanwhile, I've done some changes to the badi and implement it.
The problem is that, I can't even make a breackpoint in the method implemented.
The code implemented was:
method IF_EX_FI_AUTHORITY_ITEM~FI_AUTHORITY_ITEM.
  data: Doc_Type type bkpf-BLART.
  select BLART from bkpf into doc_type
  where BELNR = i_bseg-belnr.
  endselect.
  AUTHORITY-CHECK OBJECT 'F_BKPF_BLA'
          ID 'ACTVT' FIELD i_beract
          ID 'BRGRU' FIELD Doc_Type.
  IF sy-subrc NE 0.
    IF i_beract = '02'.
      AUTHORITY-CHECK OBJECT 'F_BKPF_BLA'
        ID 'ACTVT' FIELD '03'
        ID 'BRGRU' FIELD Doc_Type.
      IF sy-subrc NE 0.
        c_rcode = 4.
      ELSE.
        c_bmodz = 'A'.
      ENDIF.
    ELSE.
      c_rcode = 4.
    ENDIF.
  ENDIF.
endmethod.
In resume, it gets the document number and then it goes to BKPF to see the document type and checks if the user has the authorization using the object 'F_BKPF_BLA'.
Why isn't it working?