Select from a dictionary table - "timings" problem ?

Question

Hi all experts,
a simple question: in my code on an SRM machine I create a purchase order using some calls to these FM:
-1- BBP_PD_PO_CREATE;
-2- BBP_PD_PO_SAVE;
-3- eventually, a call to BBP_PD_PO_UPDATE.
-4- COMMIT WORK AND WAIT.
This sequence is used to create a purchase order in my report, but then I have to update directly in tbe BBP_PDIGP table a single field in a row that has just been added with the sequence:
CLEAR wa_del_item.
    LOOP at t_item INTO wa_del_item WHERE FINAL_ENTRY = 'X'.
      SELECT SINGLE * FROM BBP_PDIGP
        INTO WA_BBP_PDIGP
          WHERE GUID = wa_del_item-guid.
      IF sy-subrc = 0.
        WA_BBP_PDIGP-FINAL_ENTRY = 'X'.
        MODIFY BBP_PDIGP FROM WA_BBP_PDIGP.
      ENDIF.
    ENDLOOP.
Here is the problem. If I run the report and check in debug the SELECT result, it always returns a sy-subrc equal to 4. BUT if I wait a little bit more, then the SELECT finds correctly the entry.
Guess it's a problem due to "timings" in the update table process, how can I make it work? Actually, it should not be possibile to get a sysburc NE 0 , anyway cycling until the result is found appears to me as a "dirty" solution. Any idea?
Thanks in advance

Answer 1

Hi Issa and thanks for your help,
tried as you told me but unfortunately, seems it doesn't work
I'm gonna move the SELECT snip at the end of the code, hoping it helps gaining enough time.. anyway, this non-deterministic solution scares me (what about, for example, a large PO that takes a lot of time to be processed?)... Any other idea? Is there any way to force a synch on a db table?
Thanks in advance.