How To Fix /IWBEP/CM_V4_APPS026 - Entity set '&1' is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_APPS -

• Message number: 026

• Message text: Entity set '&1' is not supported

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 /IWBEP/CM_V4_APPS026 - Entity set '&1' is not supported ?

  The SAP error message /IWBEP/CM_V4_APPS026 Entity set '&1' is not supported typically occurs in the context of SAP Gateway and OData services. This error indicates that the specified entity set (represented by &1) is not recognized or is not available in the OData service you are trying to access.
  Causes:
  
  Entity Set Not Defined: The entity set you are trying to access may not be defined in the OData service.
  Service Activation: The OData service might not be activated in the SAP Gateway.
  Authorization Issues: The user may not have the necessary authorizations to access the entity set.
  Incorrect URL: The URL used to access the OData service might be incorrect or malformed.
  Service Versioning: The entity set may exist in a different version of the service that is not currently active.
  Model Changes: Changes in the underlying data model may have led to the entity set being removed or renamed.
  
  Solutions:
  
  
  Check Entity Set Definition:
  
  Verify that the entity set is defined in the OData service. You can do this by checking the service metadata (usually accessible via the $metadata endpoint).
  
  
  
  Activate the OData Service:
  
  Go to transaction code /IWFND/MAINT_SERVICE in the SAP GUI and ensure that the service is activated. If it is not, activate it.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access the OData service and the specific entity set.
  
  
  
  Verify the URL:
  
  Double-check the URL you are using to access the OData service. Ensure that it is correctly formatted and points to the right entity set.
  
  
  
  Check Service Version:
  
  If the service has multiple versions, ensure that you are accessing the correct version that includes the entity set.
  
  
  
  Review Changes in Data Model:
  
  If there have been recent changes to the underlying data model, review those changes to see if the entity set has been removed or renamed.
  
  
  
  Debugging:
  
  If you have access to the backend, you can debug the OData service to see where the error is occurring and gather more information about the issue.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  /IWFND/MAINT_SERVICE: To manage OData services.
  /IWBEP/REG_SERVICE: To register OData services.
  
  
  
  OData Service Metadata:
  
  Access the service metadata by appending $metadata to the service URL (e.g., http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata).
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific OData service you are using.
  
  
  By following these steps, you should be able to identify the cause of the error and implement the appropriate solution.