How To Fix /IWFND/MED064 - Referenced node for reference id: &1 of model id: &2 not found

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/MED -

• Message number: 064

• Message text: Referenced node for reference id: &1 of model id: &2 not found

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 /IWFND/MED064 - Referenced node for reference id: &1 of model id: &2 not found ?

  The SAP error message /IWFND/MED064 Referenced node for reference id: &1 of model id: &2 not found typically occurs in the context of SAP Gateway and OData services. This error indicates that a referenced node in the OData model cannot be found, which can happen for several reasons. Below are the potential causes, solutions, and related information for this error:
  Causes:
  
  Missing Entity Set: The referenced entity set or node may not be defined in the OData service.
  Incorrect Navigation Property: The navigation property in the OData model may be incorrectly defined or not exist.
  Service Metadata Issues: The service metadata might not be properly generated or updated, leading to inconsistencies.
  Authorization Issues: The user may not have the necessary authorizations to access the referenced node.
  Model Configuration Errors: There may be configuration errors in the OData model or service definition.
  
  Solutions:
  
  
  Check Entity Set Definition:
  
  Ensure that the entity set corresponding to the referenced node is defined in the OData service.
  Use transaction code /IWFND/MAINT_SERVICE to check the service and its entity sets.
  
  
  
  Review Navigation Properties:
  
  Verify that the navigation properties in the OData model are correctly defined and point to existing entity sets.
  Check the associations and ensure they are correctly configured.
  
  
  
  Regenerate Service Metadata:
  
  If there are changes in the underlying data model, regenerate the service metadata.
  You can do this by using transaction code /IWFND/GW_CLIENT to test the service and refresh the metadata.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access the referenced node.
  Review the roles and authorizations assigned to the user.
  
  
  
  Debugging:
  
  Use the SAP Gateway Client (/IWFND/GW_CLIENT) to test the OData service and check the response for any additional error messages.
  Enable debugging in the backend to trace the request and identify where the failure occurs.
  
  
  
  Check Service Activation:
  
  Ensure that the OData service is activated and properly registered in the system.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  /IWFND/MAINT_SERVICE: To maintain and activate OData services.
  /IWFND/GW_CLIENT: To test OData services and view metadata.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to this error message.
  
  
  Documentation: Refer to the SAP Gateway documentation for detailed information on OData service development and troubleshooting.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the /IWFND/MED064 error message in your SAP system.