How To Fix F4862 - Reverse posting key & is not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: F4 - Line items/balances/configuration

• Message number: 862

• Message text: Reverse posting key & is not defined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message F4862 - Reverse posting key & is not defined ?

  The SAP error message F4862, which states "Reverse posting key & is not defined," typically occurs when you are trying to perform a reverse posting in the Financial Accounting (FI) module, but the system cannot find a valid reverse posting key for the specified key.
  Cause:
  
  Missing Configuration: The reverse posting key you are trying to use has not been defined in the system. Each posting key in SAP has a corresponding reverse posting key that must be configured.
  Incorrect Posting Key: You may be using an incorrect or invalid posting key that does not have a defined reverse posting key.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access or use certain posting keys.
  
  Solution:
  
  
  Check Posting Key Configuration:
  
  Go to the SAP Customizing Implementation Guide (SPRO).
  Navigate to Financial Accounting (New) > General Ledger Accounting (New) > Document > Document Entry > Define Posting Keys.
  Look for the posting key you are trying to reverse and check if a reverse posting key is defined for it. If not, you may need to create or modify the posting key settings.
  
  
  
  Use Correct Posting Key:
  
  Ensure that you are using the correct posting key for the transaction you are trying to reverse. Verify the original posting to confirm the correct key.
  
  
  
  Check User Authorizations:
  
  Ensure that the user has the necessary authorizations to perform the reverse posting. This can be checked in the user roles and profiles.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for specific details related to your configuration and any potential issues.
  
  
  
  Testing:
  
  After making any changes, perform a test transaction to ensure that the issue has been resolved.
  
  
  
  Related Information:
  
  Posting Keys: Posting keys are two-digit numbers that control the type of transaction being posted (e.g., debit or credit) and the account types that can be posted to.
  Reverse Posting: This is a process used to negate a previous posting, often used in cases of errors or adjustments.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  If the issue persists after following these steps, it may be beneficial to reach out to your SAP support team or consult with an SAP FI consultant for further assistance.