COMMIT WORK AND WAIT does not work

Question

Hello,
I know this question has been asked many times in various forums. But the fact remains that there is no definitive solution found for this problem which does not involve WAIT UP TO n SECONDS or SELECT until the DB commit has been completed.
We have an IDoc based inbound interface for creating Project Defintion and WBS Elements. Here is how the code looks like in the processing function module:
* Create Project Defintion
CALL FUNCTION 'BAPI_PROJECTDEF_CREATE'
  EXPORTING
    project_definition_stru = lwa_proj_bapi
  TABLES
    e_message_table         = lt_messages.
* If no errors
CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
  EXPORTING
    wait = 'X'.
* Other code
* Create WBS Element (BAPI could not be used because not all fields are allowed to be updated)
CALL TRANSACTION 'CJ11'
Now while creating the WBS Element, transaction CJ11 returns an error that 'Project does not exist'. This is not correct because the same Project was successfully created in the previous step.
It is clear that the problem is because of the delay in database commits.
This happens only with few IDoc's and not all of them. And of course, the problem does not occur if I induce WAIT UP TO n SECONDS after BAPI_TRANSACTION_COMMIT. But this is not the best practice.
The question is why BAPI_TRANSACTION_COMMIT does not wait even though we are forcing it to?
Thanks in advance
Sagar Acharya

Answer 1

Suhas wrote:
But i am baffled that although the COMMIT has happened earlier why is the data not updated in the DB ?
Well, it's just a [COMMIT WORK|http://help.sap.com/abapdocu_70/en/ABAPCOMMIT.htm] and not a [COMMIT WORK AND WAIT|http://help.sap.com/abapdocu_70/en/ABAPCOMMIT.htm#@@AND%20WAIT@@COMMIT%20WORK@@]. Let me quote the ABAP help:
If you do not specify the addition AND WAIT, the program does not wait until the update work process has executed it (asynchronous updating), but instead is resumed immediately after COMMIT WORK. However, if the addition AND WAIT is specified, program processing after COMMIT WORK will not continue until the update work process has executed the high-priority update function modules (synchronous updating).
@Sagar Acharya: Well, I thought you were looking for an explanation why sometimes the project isn't created (and you only had posted coding that showed details for step 1) - I'm trying hard, but my mind reading skills are rather limited yet...
So let's think about step 2 and 3: I assume that you made sure that your coding always references the correct WBS element. Again the commit (without wait) is done already via CJ11 (e.g. check form BUCHEN in SAPLCJWB). I'd expect though that the synchronous update mode should make this work. Since it doesn't, I'd try local update mode, which is what I'd choose in your case anyhow.
Apart from that my mind is pretty blank, except for the usual silly things to check. E.g. are you sure you're coding is correct, you are handling all return messages and log them for inspection later (e.g. application log), you are certain that the WBS was actually created by the same IDoc that throws the fit (and IDoc was not reprocessed), etc.
So maybe somebody else has better ideas...