How To Fix 1M040 - The new posting day must be before the current valid one

1M040 - Overview

• Message type: E = Error

• Message class: 1M - BKK: Abschluß

• Message number: 040

• Message text: The new posting day must be before the current valid one

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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1M040 - Details

• The SAP error message 1M040 ("The new posting day must be before the current valid one") typically occurs when you are trying to post a transaction in a period that is not open for posting. This error indicates that the posting date you are trying to use is either in the future or in a closed period.
  
  Cause:
  
  Posting Date Issue: The posting date you are trying to use is set to a date that is either later than the current date or falls into a period that has been closed for posting.
  Period Closing: The financial period you are trying to post to has been closed, and SAP does not allow postings to closed periods.
  Configuration Settings: The system settings may restrict postings to certain periods based on company policies or configurations.
  
  
  Solution:
  
  Check Posting Date: Ensure that the posting date you are using is correct and is not set to a future date. It