How To Fix F8122 - The posting key on the credit side is not a credit posting key

SAP Error Message - Details

• Message type: E = Error

• Message class: F8 -

• Message number: 122

• Message text: The posting key on the credit side is not a credit posting key

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message F8122 - The posting key on the credit side is not a credit posting key ?

  The SAP error message F8122, which states "The posting key on the credit side is not a credit posting key," typically occurs during the posting of financial transactions in the SAP system. This error indicates that the system has detected an inconsistency in the posting keys used in the transaction, specifically on the credit side of the entry.
  Cause:
  
  Incorrect Posting Key: The posting key used for the credit side of the transaction is not defined as a credit posting key in the SAP system. Posting keys determine the type of transaction (debit or credit) and the account types that can be posted to.
  Configuration Issues: There may be a configuration issue in the Financial Accounting (FI) module where the posting keys are not set up correctly.
  User Error: The user may have manually entered an incorrect posting key during the transaction entry.
  
  Solution:
  
  Check Posting Keys: Verify the posting keys being used in the transaction. Ensure that the posting key for the credit side is indeed a valid credit posting key (e.g., 40 for customer credit, 50 for vendor credit).
  Review Configuration: If you have access to configuration settings, check the configuration of posting keys in the SAP system:
  
  Go to the transaction code OB13 to view and manage posting keys.
  Ensure that the posting key used for the credit side is configured correctly as a credit posting key.
  
  
  Correct the Entry: If the error is due to user input, correct the transaction entry by selecting the appropriate credit posting key.
  Consult Documentation: Refer to SAP documentation or help resources for more information on posting keys and their configurations.
  
  Related Information:
  
  Posting Keys: Posting keys are two-digit numbers that control the type of posting (debit or credit) and the account types that can be posted. Common posting keys include:
  
  40: Credit for customer accounts
  50: Credit for vendor accounts
  01: Debit for general ledger accounts
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  FB01: Post Document
  FB50: Enter G/L Account Document
  OB13: Define Posting Keys
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  If the issue persists after checking the above points, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in the FI module for further assistance.