How To Fix F4852 - Posting key & already exists

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 852

• Message text: Posting key & already exists

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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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Smart SAP Assistant

• What is the cause and solution for SAP error message F4852 - Posting key & already exists ?

  The SAP error message F4852, which states "Posting key & already exists," typically occurs when there is an attempt to create or modify a posting key that already exists in the system. Posting keys in SAP are used to define the type of transaction being processed, such as whether it is a debit or credit, and they are essential for proper financial accounting.
  Cause:
  
  Duplicate Posting Key: The most common cause of this error is that the posting key you are trying to create or modify already exists in the system.
  Configuration Issues: There may be issues in the configuration settings where the posting keys are defined.
  Data Entry Errors: Sometimes, the error can arise from incorrect data entry or an attempt to use a posting key that is not valid for the transaction type.
  
  Solution:
  
  
  Check Existing Posting Keys: 
  
  Go to the transaction code OB14 (for defining posting keys) or OBD2 (for displaying posting keys) to check if the posting key you are trying to create already exists.
  If it does exist, you may need to use that existing key instead of creating a new one.
  
  
  
  Modify Existing Posting Key: 
  
  If you need to change the properties of an existing posting key, you can do so in the same configuration area (OB14 or OBD2) instead of creating a new one.
  
  
  
  Review Configuration: 
  
  Ensure that the configuration for posting keys is set up correctly and that there are no conflicts or errors in the settings.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or help files for more detailed information on posting keys and their configuration.
  
  
  
  Contact SAP Support: 
  
  If you are unable to resolve the issue, consider reaching out to SAP support or your internal SAP team for assistance.
  
  
  
  Related Information:
  
  Posting Key Definition: Posting keys are defined in the Financial Accounting (FI) module and are crucial for the proper functioning of financial transactions.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  OB14: Define Posting Keys
  OBD2: Display Posting Keys
  FB50: General Ledger Account Document Entry (to test posting keys)
  
  
  User Authorizations: Ensure that you have the necessary authorizations to create or modify posting keys in the system.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution effectively.