How To Fix 5P399 - & schema already generated

5P399 - Overview

• 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.

5P399 - Details

• 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