How To Fix /IWFND/CM_DATA_CON_S023 - Node item for relation '&1' is not available on the provider

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_DATA_CON_S -

• Message number: 023

• Message text: Node item for relation '&1' is not available on the provider

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 /IWFND/CM_DATA_CON_S023 - Node item for relation '&1' is not available on the provider ?

  The SAP error message /IWFND/CM_DATA_CON_S023 indicates that there is an issue with the data model in the OData service. Specifically, the error message "Node item for relation '&1' is not available on the provider" suggests that the OData service is trying to access a node or entity that is not available or not properly defined in the service's data model.
  Causes:
  
  Missing Node Definition: The node or entity that the OData service is trying to access is not defined in the service's metadata.
  Incorrect Navigation Property: The navigation property that links to the node may be incorrectly defined or not present.
  Service Activation Issues: The OData service may not be properly activated or may have been deactivated.
  Authorization Issues: The user may not have the necessary authorizations to access the node or entity.
  Data Model Changes: Changes in the underlying data model (like changes in the database or data structure) that are not reflected in the OData service.
  
  Solutions:
  
  Check Metadata: Verify the metadata of the OData service to ensure that the node in question is defined. You can access the metadata by appending $metadata to the service URL.
  Review Service Implementation: Check the implementation of the OData service to ensure that the node is correctly defined and that the navigation properties are set up properly.
  Activate/Reactivate Service: If the service is not activated, activate it using transaction code /IWFND/MAINT_SERVICE. If it is already activated, try reactivating it.
  Check Authorizations: Ensure that the user has the necessary authorizations to access the node. This can be done by checking the roles and authorizations assigned to the user.
  Debugging: Use the SAP Gateway Client (transaction /IWFND/GW_CLIENT) to test the OData service and see if you can reproduce the error. This can help in identifying the exact cause.
  Check for Changes: If there have been recent changes to the underlying data model, ensure that the OData service has been updated accordingly.
  
  Related Information:
  
  Transaction Codes:
  
  /IWFND/MAINT_SERVICE: To manage OData services.
  /IWFND/GW_CLIENT: To test OData services.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues related to this error.
  Documentation: Review the SAP Gateway documentation for best practices in defining and managing OData services.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /IWFND/CM_DATA_CON_S023.