Message type: E = Error
Message class:  /PM0/ABD_ACC -  
Message number: 030
Message text: Not possible to execute business transaction; posting period closed
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The SAP error message /PM0/ABD_ACC030 indicates that a business transaction cannot be executed because the posting period is closed. This typically occurs in financial modules when an attempt is made to post transactions in a period that has already been closed for posting.
Cause: Closed Posting Period: The most common cause is that the posting period for the relevant accounting period has been closed. This is often done at the end of a financial month or year to prevent further postings. Configuration Settings: The system settings may restrict postings to certain periods based on company policies or accounting practices. User Authorization: The user may not have the necessary authorization to post in the desired period, even if it is open.
Solution: Check Posting Period: Navigate to the transaction code OB52 (or use the menu path: SPRO > Financial Accounting > Financial Accounting Global Settings > Document > Open and Close Posting Periods). Verify the status of the posting
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