How To Fix CL_RAP_OPXY_EDMX_MSG020 - Entity Set Name " & " is not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: CL_RAP_OPXY_EDMX_MSG -

• Message number: 020

• Message text: Entity Set Name " & " is not valid

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CL_RAP_OPXY_EDMX_MSG020 - Entity Set Name " & " is not valid ?

  The SAP error message CL_RAP_OPXY_EDMX_MSG020 typically indicates that there is an issue with the entity set name in the context of the RAP (Rapid Application Programming) model. This error can occur during the execution of an OData service or when trying to access an entity set that is not defined correctly or does not exist.
  Cause:
  
  Incorrect Entity Set Name: The entity set name specified in the OData request does not match any of the defined entity sets in the service.
  Service Definition Issues: The OData service may not be properly defined or activated in the SAP system.
  Namespace Issues: There may be a mismatch in the namespace or the naming conventions used in the service definition.
  Authorization Issues: The user may not have the necessary authorizations to access the specified entity set.
  Model Changes: If there have been recent changes to the RAP model or the underlying database, the entity set may have been removed or renamed.
  
  Solution:
  
  Check Entity Set Name: Verify that the entity set name used in the request matches exactly with the names defined in the OData service metadata. This includes checking for typos, case sensitivity, and any special characters.
  Review Service Definition: Ensure that the OData service is correctly defined and activated in the SAP Gateway. You can check this in transaction /IWFND/MAINT_SERVICE.
  Check Metadata: Access the service metadata (usually available at the URL http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata) to confirm that the entity set is defined as expected.
  Authorization Check: Ensure that the user has the necessary authorizations to access the entity set. This can be checked in transaction SU53 after the error occurs.
  Rebuild the Model: If there have been changes to the underlying data model, consider regenerating the RAP model or reactivating the service to ensure that all changes are reflected.
  Consult Logs: Check the application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  Related Information:
  
  RAP Model Documentation: Familiarize yourself with the SAP RAP model documentation to understand how entity sets are defined and managed.
  OData Service Documentation: Review the OData service documentation for specific details on how to structure requests and the expected entity set names.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the issue related to the error message CL_RAP_OPXY_EDMX_MSG020.