How To Fix 5P399 - & schema already generated

SAP Error Message - Details

• Message type: E = Error

• Message class: 5P - Error Messages for Schema, Pers.Calc.Rule and Feature Checks

• Message number: 399

• Message text: & schema already generated

What causes this issue?

You have tried to generate a schema which, according to time stamp
data, is still current. If you still want to regenerate this schema,
mark the 'Force generation' checkbox.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 5P399 - & schema already generated ?

  The SAP error message "5P399" typically indicates an issue related to the generation of a schema in the context of SAP applications, particularly in the SAP Business Warehouse (BW) or SAP HANA environments. The message "schema already generated" suggests that the system is trying to create a schema that already exists, which can lead to conflicts or errors during the data modeling or data loading processes.
  Cause:
  
  Schema Already Exists: The most common cause is that the schema you are trying to generate has already been created in the database. This can happen if the schema generation process was previously executed and not properly cleaned up.
  Database Connection Issues: There may be issues with the database connection that prevent the system from verifying the existence of the schema.
  Incorrect Configuration: Misconfiguration in the data model or the settings for the data source can lead to attempts to regenerate an existing schema.
  Concurrent Processes: If multiple processes are trying to generate the same schema simultaneously, it can lead to conflicts.
  
  Solution:
  
  Check Existing Schemas: Use database management tools to check if the schema already exists. If it does, you may need to drop it or rename it before attempting to regenerate it.
  Clean Up: If the schema is not needed, you can drop it manually from the database. Ensure that you have backups if necessary.
  Review Configuration: Check the configuration settings in your SAP BW or HANA model to ensure that they are correct and do not point to an existing schema unintentionally.
  Database Connection: Verify that the database connection is stable and correctly configured. Test the connection to ensure that it can communicate with the database without issues.
  Check for Concurrent Jobs: Ensure that no other jobs are running that might be trying to generate the same schema. If necessary, coordinate the execution of these jobs to avoid conflicts.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error. SAP frequently updates its knowledge base with solutions for common issues.
  Logs and Traces: Review the application logs and traces for more detailed error messages that can provide additional context about the failure.
  Documentation: Refer to the official SAP documentation for your specific version of SAP BW or HANA for best practices on schema management and troubleshooting.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the steps you have already taken.