How To Fix /BOBF/COM_GEN_MODEL331 - External Modifier &1: Generation description &2 could not be read

SAP Error Message - Details

• Message type: E = Error

• Message class: /BOBF/COM_GEN_MODEL -

• Message number: 331

• Message text: External Modifier &1: Generation description &2 could not be read

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 /BOBF/COM_GEN_MODEL331 - External Modifier &1: Generation description &2 could not be read ?

  The SAP error message /BOBF/COM_GEN_MODEL331 typically indicates an issue related to the Business Object Processing Framework (BOPF) in SAP. This error occurs when the system is unable to read the generation description for an external modifier. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Missing or Incomplete Configuration: The external modifier might not be properly configured or might be missing in the system.
  Transport Issues: If the object was transported from one system to another (e.g., from development to production), there might be inconsistencies or missing components.
  Authorization Issues: The user might not have the necessary authorizations to access the required objects or data.
  Data Inconsistencies: There could be inconsistencies in the underlying data model or database entries related to the external modifier.
  
  Solution:
  
  Check Configuration: Verify that the external modifier is correctly configured in the BOPF model. Ensure that all necessary components are present and correctly defined.
  Transport Validation: If the issue arose after a transport, check the transport logs for any errors or warnings. Ensure that all dependent objects were transported correctly.
  Authorization Check: Ensure that the user has the necessary authorizations to access the BOPF objects and the associated data.
  Rebuild the Model: If the model is corrupted, you may need to regenerate the BOPF model. This can often be done using transaction codes like /BOBF/CONF or /BOBF/GEN.
  Check for Notes: Look for SAP Notes related to this error message. SAP frequently releases notes that address specific issues or bugs.
  Debugging: If you have access to the development environment, you can debug the BOPF framework to identify where the error is occurring.
  
  Related Information:
  
  BOPF Documentation: Familiarize yourself with the BOPF framework and its components. SAP provides documentation that can help you understand how to configure and troubleshoot BOPF models.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution.