How To Fix /IWNGW/CM_HUB002 - The entity type '&1' is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWNGW/CM_HUB -

• Message number: 002

• Message text: The entity type '&1' is not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWNGW/CM_HUB002 - The entity type '&1' is not supported ?

  The SAP error message /IWNGW/CM_HUB002 The entity type '&1' is not supported typically occurs in the context of SAP Gateway services, particularly when working with OData services. This error indicates that the specified entity type (represented by &1) is not recognized or supported by the system.
  Causes:
  
  Incorrect Entity Type: The entity type specified in the request does not exist in the OData service definition.
  Service Not Activated: The OData service that includes the entity type may not be activated in the SAP Gateway.
  Authorization Issues: The user may not have the necessary authorizations to access the specified entity type.
  Model Issues: There may be issues with the data model or metadata of the OData service, such as missing or incorrectly defined entity types.
  Versioning Issues: If there are multiple versions of the OData service, the request may be pointing to an outdated or incorrect version.
  
  Solutions:
  
  
  Check Entity Type: Verify that the entity type specified in the request is correctly defined in the OData service. You can do this by checking the service metadata (usually accessible via a URL like /sap/opu/odata/sap/<service_name>/$metadata).
  
  
  Activate the Service: Ensure that the OData service is activated in the SAP Gateway. You can do this using transaction code /IWFND/MAINT_SERVICE to check the status of the service and activate it if necessary.
  
  
  Check Authorizations: Ensure that the user has the necessary authorizations to access the OData service and the specific entity type. This may involve checking roles and authorizations in the SAP system.
  
  
  Review the Data Model: If you have access to the backend, review the data model and ensure that all entity types are correctly defined and mapped.
  
  
  Test with Different Clients: Sometimes, the issue may be client-specific. Test the OData service using tools like Postman or the SAP Gateway Client (transaction /IWFND/GW_CLIENT) to see if the error persists.
  
  
  Check for Versioning: If your system uses multiple versions of the OData service, ensure that the request is targeting the correct version.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific OData service or entity type.
  SAP Community: The SAP Community forums can be a valuable resource for troubleshooting similar issues encountered by other users.
  Documentation: Review the official SAP documentation for OData services and SAP Gateway for best practices and troubleshooting steps.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP support team for further assistance.