Message type: E = Error
Message class: CMM_MTM_ACC - Messages in MtM Accounting
Message number: 006
Message text: Posting not possible; reversal document &1 for period &2, CCode &3 exists
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
You are not allowed to perform this posting, since the posted documents
for this accounting period have been already reversed with transaction
<DS:TRAN.CMM_MTM_ACCR>CMM_MTM_ACCR</> .
Error message extract from SAP system. Copyright SAP SE.
CMM_MTM_ACC006
- Posting not possible; reversal document &1 for period &2, CCode &3 exists ?The SAP error message CMM_MTM_ACC006 indicates that a posting is not possible because a reversal document already exists for the specified period, company code, and document number. This error typically occurs in the context of financial postings, particularly when dealing with material movements or accounting entries.
Cause: The error is triggered when you attempt to post a document (such as a journal entry or a material document) in a period where a reversal document already exists. This is a safeguard in SAP to prevent inconsistencies in financial reporting and to ensure that the accounting records remain accurate.
Solution: To resolve this error, you can take the following steps: Check for Existing Reversal Document: Use transaction codes like FB03 (Display Document) or MB03 (Display Material Document) to check if the reversal document exists for the specified document number and period. Note the details of the reversal document, including its document number and the reason for the reversal. Review Posting
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