Differnce between BAPI and FM for MIRO

Hi All,
What is the difference between using the BAPI_INCOMINGINVOICE_CREATE or MRM_INVOICE_CREATE.
I have a situation where i need to use the CALL transaction of MIRO as i cannot use the BAPI_INCOMINGINVOICE_CREATE.
THough i have done a recording and was able to do simulation.. but i doubt whether that will work because i have not found a supporting answer for using CALL transaction approach for MIRO and even the SAP does not recommend it. Pl. advice.

Hi Avinash,
1. If u want to use,
   use BAPI_INCOMINGINVOICE_CREATE
(Do not use MRM_INVOICE_CREATE)
2. REASON
   The FM MRM_INVOICE_CREATE
   is used by the MIRO program in its code.
   BUT
   It calls this FM ONLY AFTER ALL
   SCREEN VALIDATIONS / LOGIC / BUSINESS VALIDATIONS
   have been done for the data entered by the user.
3. The FM MRM_INVOICE_CREATE
   will BLINDLY create the document
   without any validation!
4. BUT for your purpose,
   u don't want such blind thing to happend.
   U want the full functionality of MIRO
   with all validations and business logic.
5. BAPIs have been created by SAP
   for the same REASON.
6. If we use BAPI BLINDLY,
   then also,
   The system/BAPI will check
   ALL VALIDATIONS JUST LIKE MIRO TRANSACTION,
   and only after this strong checks,
   it will post the document.
7. If there are any errors/warnigns,
   the BAPI will give errors and not post the document,
where as the simple FM MRM_INVOICE_CREATE
won't give any warning or alert to the user
   and may post incorrect data(provided by our z program)
Hence, Go for BAPI_INCOMINGINVOICE_CREATE
Regards,
Amit M.

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Reg,
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The difference is not importat while you understand the concept.
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http://help.sap.com/saphelp_47x200/helpdata/en/22/042860488911d189490000e829fbbd/frameset.htm.
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The difference is not importat while you understand the concept.
I think, RFC is the protocol for calling functions from external systems in R/3.
I understand like BAPI a series of complet functions that SAP offers you for use and model a business use.
But if I need program a function that can be called for external system i would call it RFC_NAME, because is a unique function that makes a single task.
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Check these Links out
http://searchsap.techtarget.com/ateQuestionNResponse/0,289625,sid21_cid558752_tax293481,00.html
http://www.sap-img.com/abap/interview-question-on-bapi-rfc-abap-objects-tables.htm
http://www.sap-img.com/fu033.htm
http://www.sap-img.com/abap/ale-bapi.htm
Refer following SDN threads:
Diff. Between BAPI and RFC
Re: BAPI and RFC
difference between RFC and BAPI
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