How To Fix FH143 - Posting key & is no longer defined in account determination

FH143 - Overview

• Message type: E = Error

• Message class: FH - General ledger module messages

• Message number: 143

• Message text: Posting key & is no longer defined in account determination

What causes this issue?

Postings which are no longer defined in the posting key were carried
out in the account.

System Response

The program cannot continue because it does not know if conversion can
take place or not.

How to fix this error?

Check the relevant posting key in Customizing.

Error message extract from SAP system. Copyright SAP SE.

FH143 - Details

• The SAP error message FH143 ("Posting key & is no longer defined in account determination") typically occurs when there is an issue with the configuration of the account determination for a specific posting key in the Financial Accounting (FI) module. This error indicates that the system cannot find a valid account assignment for the specified posting key in the account determination settings.
  
  Cause:
  
  Missing Configuration: The posting key in question is not properly configured in the account determination settings.
  Changes in Posting Keys: The posting key may have been deleted or modified in the system, leading to a mismatch.
  Incorrect Account Assignment: The account assignment for the posting key may not be defined for the specific transaction or document type being processed.
  Transport Issues: If the configuration was transported from another system, it may not have been transported correctly.
  
  
  Solution:
  
  
  Check Account Determination Configuration:
  
  Go to the transaction code OBYC (Automatic Account Determination).
  Verify the settings for the relevant