How To Fix FB788 - Different key fields for old and new balance record

SAP Error Message - Details

• Message type: E = Error

• Message class: FB - Batch Programs

• Message number: 788

• Message text: Different key fields for old and new balance record

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FB788 - Different key fields for old and new balance record ?

  The SAP error message FB788, which states "Different key fields for old and new balance record," typically occurs during the process of posting a financial document or when trying to change a balance record in the system. This error indicates that there is a mismatch between the key fields of the existing balance record and the new balance record that you are trying to create or update.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Key Field Mismatch: The key fields (such as company code, account number, fiscal year, etc.) of the existing balance record do not match those of the new record you are trying to create or update.
  Data Integrity Issues: There may be inconsistencies in the data that prevent the system from correctly linking the old and new records.
  Incorrect Document Type: The document type used for the transaction may not be compatible with the existing records.
  Posting Period Issues: The posting period may be closed or not open for the transaction you are trying to perform.
  
  Solution:
  To resolve the FB788 error, you can take the following steps:
  
  
  Check Key Fields: Verify that the key fields of the existing balance record match those of the new record. This includes checking the company code, account number, and any other relevant fields.
  
  
  Review Document Type: Ensure that the document type you are using is appropriate for the transaction and that it aligns with the existing records.
  
  
  Open Posting Period: Check if the posting period is open for the transaction you are trying to post. If it is closed, you may need to open it or post in a different period.
  
  
  Data Consistency: Run data consistency checks to ensure that there are no discrepancies in the financial data. This can often be done using transaction codes like FB03 (Display Document) to review the document details.
  
  
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for common issues.
  
  
  Contact Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with SAP directly for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB01 (Post Document), FB03 (Display Document), and FB08 (Reverse Document) to navigate through the financial documents.
  SAP Documentation: Review SAP documentation and help files for more detailed explanations of balance records and key fields.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed and resolved.
  
  By following these steps, you should be able to identify the cause of the FB788 error and implement a solution to resolve it.