How To Fix BRF651 - Conversion class &1 of class ID &2 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: BRF - Messages for Business Rule Framework

• Message number: 651

• Message text: Conversion class &1 of class ID &2 does not exist

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 BRF651 - Conversion class &1 of class ID &2 does not exist ?

  The SAP error message BRF651 indicates that there is an issue with a conversion class that is expected to exist in the Business Rule Framework (BRF) but cannot be found. This error typically arises in scenarios where the system is trying to access a conversion class that has not been defined or has been deleted.
  Cause:
  
  Missing Conversion Class: The specified conversion class does not exist in the system. This could be due to it being deleted or never created.
  Incorrect Class ID: The class ID provided in the error message may be incorrect or misspelled.
  Transport Issues: If the conversion class was transported from another system, there may have been issues during the transport process that caused it not to be created properly.
  Authorization Issues: The user may not have the necessary authorizations to access the conversion class.
  
  Solution:
  
  Check for Existence: Verify if the conversion class exists in the system. You can do this by navigating to the relevant transaction (e.g., BRF+ or SE80) and searching for the class ID mentioned in the error message.
  Create or Restore the Class: If the conversion class does not exist, you may need to create it. If it was deleted, you might need to restore it from a backup or transport request.
  Verify Class ID: Double-check the class ID in the configuration or code that is generating the error to ensure it is correct.
  Transport Check: If the class was supposed to be transported from another system, check the transport logs for any errors and ensure that the transport was successful.
  Authorization Check: Ensure that the user has the necessary authorizations to access the conversion class. You may need to consult with your security team to verify this.
  
  Related Information:
  
  BRF+ Documentation: Review the official SAP documentation for BRF+ to understand how conversion classes are defined and used.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance related to BRF651.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as BRF+ (for Business Rule Framework) and SE80 (for Object Navigator) to manage and troubleshoot BRF objects.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.