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OMRM - Messages M8 478 to 481 - Invoice Verification/Valuation

Hi all,

I'm trying to find out what the difference is between messages M8 082-085 and M8 478-481 as the messages are the same. On searching I have found that M8 082-085 are for invoice and M8 478-481 are for Credit Memo. To prove this I have tried to replicate the messages in different scenarios. I'm able to verify that messages M8 082-085 are indeed for LIV when LIV amount is greater than tolerance amount versus the Goods Receipt amount. I'm however battling to prove whether the theory of messages M8 478-481 are for the credit memo process.

First question - Are messages M8 478-481 for the Credit memo process

Second question - If they are, then how do I replicate a scenario where these messages would appear?

Thanking you in advance for any assistance.

Kind regards


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1 Answer

  • Apr 18, 2017 at 09:54 AM

    Open transaction SE91 and enter message class M8, click display and scroll through the entries.

    SAP has grouped the messages and has entered a message that just describes the section, like message 469 which has the description

    ******** 470-499 reserved for Batch IV **********************************

    if you select the message and click the where used button you will be taken to the programs where they are processed, in this case they are all going to function module MRM_AMOUNT_CHECK

    If you can read German then you can see from the comments what checks are done, otherwise you need to understand ABAP

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