How To Fix /NFM/CA662 - First posting day is before the current date

/NFM/CA662 - Overview

• Message type: E = Error

• Message class: /NFM/CA -

• Message number: 662

• Message text: First posting day is before the current date

Self-Explanatory Message

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/NFM/CA662 - Details

• The SAP error message /NFM/CA662 indicates that the first posting day for a financial period is set before the current date. This typically occurs in the context of financial accounting or controlling when trying to post transactions in a period that is not open for posting.
  
  Cause:
  
  Incorrect Configuration: The first posting day for the financial period may have been set incorrectly in the system configuration.
  Period Locking: The financial period may be locked for posting, preventing any transactions from being recorded before the specified first posting day.
  Date Mismatch: The date of the transaction being posted is earlier than the first posting day defined in the system.
  
  
  Solution:
  
  
  Check Configuration:
  
  Go to the transaction code OB52 (or the relevant configuration transaction) to check the posting periods.
  Ensure that the first posting day is set correctly and is not before the current date.
  
  
  
  Adjust Posting Periods:
  
  If necessary, adjust the first posting day to a date that is on or