Wrong Data: BAPI_ACC_DOCUMENT_POST

[Former Member]

Hi all,

I am doing some analysing to find out why some data in SAP are wrong.

Data are coming from an external system to sap using the .Net Connector, RFC. A field in SAP has a wrong content. I have been told to check the BAPI BAPI_ACC_DOCUMENT_POST or BAPI_ACC_DOCUMENT_CHECK.We are writing our own BAPI using the existing one in them. I have found that the table "accountgl" has not been changed anywhere in any of theses BAPIs. My questions are:

- how does the transfer of data with BAPI actually work?

- Where should I look? I have not found any report in our sap system where data mapping have been done for this purpose, to fill the BAPI table? I think I need better understanding of how the connection with BAPI work. A few sentences to give me an idea will be fine. I have created a BAPI before just to learn how to create it. I have never connected 2 Systems.

Please help.

[Former Member]

If done correctly, your BAPI will be placing data in the interface fields and tables of the standard BAPI.  My first step would be to get the data that is being presented to your BAPI and debug it in the foreground.  Check to see that all of the standard BAPI fields are filled with appropriate data.

Neal

[Former Member]

Thanks for your answer. The data coming from the external system are filled in the SAP tables. That is not the problem. The problem is that one field has a wrong value. I have to check where this error is coming. I would like to understand how the data from the external system come to fill the interface. My goal is to check if they have been changed somewhere. I used on the BAPI BAPI_ACC_DOCUMENT_POST the where used list to go back and check the origin of the data but I could find any. I explain it a little simplier: I just need to understand how the data get to the BAPI. I didnt find any report that read data from a file in an internal table or something. Please I am new to this. HELP!!!

[Former Member]

What field is being mis-filled?

Neal

[nabheetscn]

Hi Maria

if its being remotely called you wont be able to check it via where used list. Which field is the issue

nabheeet

[Former Member]

how does the data transfer works remotely. I need to understand the steps.

[tkaess]

Hello Maria,

in the normal way it's not difficult.

You can look to this post and I think you'll find the solution.

http://scn.sap.com/thread/600962

Warm regards

Thomas

[Former Member]

the code is already working but my problem is that i cannot find the mapping part anywhere. Is it possible that data are transfered directely without any change from one system to the other. I need to understand how this transfer work. Thanks

[tkaess]

Hi Maria,

you created a remote functional module with the transaction SE37? In this modul you call the bapi BAPI_ACC_DOCUMENT_POST. You must create this own functional routine in both Systems (i think you made it). The rfc call is directly, without conversations (without ALE). Do you work with tables as importing / exporting parameters. In the past the rfc layer (it's old) need tables (multi arrays) as table (--> old style). I think you give all fields as value in the interface (sap check it, when you activate the functional modul as remote - on the first register).

When you set an external breakpoint in your target system with the rfc user, you can catch the call and it's possible, to see the incoming parameters. An other way to analyse is to work with the transaction st12. There you can activate the trace for your rfc user (in the target system) and for the user, which call the function module (in the sender system).

For further help i need the source of your customer functional module and the source, where you call the functional module.

Regards Thomas

[Former Member]

Hi Thomas,

thanks. Everything is written and has worked for years. The problem is just that of field of the table accountgl has wrong value in it. You say that the rfc call is directly, without conversations (without ALE).Does it mean that the data coming from the external system cannot be changed? If yes, that mean that the mapping is happening in the external system. The external system is not an SAP System. I have no access to the external system. Does it mean that the data could have being wrong in the external system and just got transfered directly to SAP?

Thanks.

[tkaess]

Hi Maria,

yes, that's right. When you work with rfc / webservice, - the communication is online / without changes, before the rfc function module start (in SAP). In the normal way the mistakes are in the sender system, before the rfc function module start or in sap, in the rfc function module - or later.

Some externel systems don't support the rfc communcation directly and go over an interface proxy. Here you can have mistakes also because often it's possible to make conversations / mappings in the Proxy. But this is not a SAP part.

In ALE / IDOC communcations there is an layer in SAP for conversation - bevor the function module start.

[Former Member]

Thanks. I have the BAPIs FM. How can I find out which RFC Function modules are used?

[tkaess]

The BAPI is also a RFC function module... you can call this function module with RFC from outsite. Sometimes it's necessary to make other thinks before the bapi work. In this way, you create a customer function module and in this call the bapi. Then the bapi doesn't work as RFC module, the new function module take this part.

[Former Member]

Hi Thomas, thanks so much for your help. I have a customer function module that calls the BAPI_ACC_DOCUMENT_POST. In this customer function module the table accountgl is not changed. There is a report written and  in this report there is two customers written function modules in example

ZBAPI_ACC_DOCUMENT_CHECK and ZBAPI_ACC_DOCUMENT_POST that called each respectively

BAPI_ACC_DOCUMENT_CHECK and BAPI_ACC_DOCUMENT_POST. In the report there are few testdata that are set at the beginning. If I understood well, the customer function module are connected to the external system and the data exchange happens when the are called. Do you have a link where I can read more about this? I see a lot of links to create the function module but none that explain how the data transfer work.  Thanks.

[tkaess]

Yes, that's right.

Look to

SAP Library - Components of SAP Communication Technology

go to "RFC in SAP Systems"

[Former Member]

Hi,

thanks for your reply. I just read this

Transferring FI-Asset Master using BAPIs in Data Transfer Workbench - ABAP Development - SCN Wiki

I am a little bit confused because I cannot see the mapping of the external data to sap. I have read that LSWM used mapping rules for this.

I am confused.

[tkaess]

Hi,

in LSMW you can make mapping rules. It's possible to use BAPIs in this. The workbench generate a Report for the conversation step. In the normal way you use it for data migrations and simple Interfaces.

[Nawanandana]

Hi,

Hope you know how to pass input parameters to the BAPI. Using SE37 you can test the web service with your sample data. same time with the external party you can confirm same sample data passed particulate parameter field.

you can trace the web service using T-code SRT_UTIL. once you post the document can do  testing using FB03 weather the document post or not properly.

for BAPI_ACC_DOCUMENT_POST need to commit also.

Regard,

Nawa

[marcelsommer]

If you call the BAPI via RFC such as...

call function 'BAPI_ACC_DOCUMENT_POST' destination 'XXX' ...

...you MUST run the following function module afterwards:
call function 'BAPI_TRANSACTION_COMMIT' destination 'XXX'.

A simple "commit work" does not work since it does not reach the RFC system! Don't forget the destination.