How To Fix SAMDT_VALIDATIONS090 - The schema already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: SAMDT_VALIDATIONS - Validations errors in S&AM design time

• Message number: 090

• Message text: The schema already exists

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 SAMDT_VALIDATIONS090 - The schema already exists ?

  The SAP error message SAMDT_VALIDATIONS090 indicates that there is an attempt to create a schema that already exists in the system. This error typically occurs in the context of data modeling or when working with SAP Data Services or similar tools where schemas are defined for data integration and transformation.
  Cause:
  
  Duplicate Schema Creation: The most common cause of this error is that a schema with the same name already exists in the database or the data model you are working with.
  Incorrect Configuration: There may be a misconfiguration in the project or data flow that leads to an attempt to create a schema that is already defined.
  Concurrent Processes: If multiple processes or users are trying to create the same schema simultaneously, it can lead to this error.
  
  Solution:
  
  Check Existing Schemas: Verify if the schema you are trying to create already exists. You can do this by querying the database or checking the data model in the SAP tool you are using.
  Rename the Schema: If you need to create a new schema, consider renaming it to avoid conflicts with existing schemas.
  Modify the Data Flow: If the schema is being created as part of a data flow, review the data flow logic to ensure that it does not attempt to create the schema if it already exists.
  Error Handling: Implement error handling in your data integration processes to manage situations where a schema already exists, such as skipping the creation step if the schema is found.
  Consult Documentation: Refer to the SAP documentation or help resources for specific guidance related to the tool you are using, as there may be additional context or settings that can help resolve the issue.
  
  Related Information:
  
  SAP Data Services: If you are using SAP Data Services, check the Data Services Management Console for existing schemas and their configurations.
  Database Management: If you have access to the database, you can use SQL queries to list existing schemas and their properties.
  SAP Community: Consider searching or posting on the SAP Community forums for additional insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the error and successfully manage your schemas in SAP.