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
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.
Unfortunately, there isn't any extra information in this error notice.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
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.
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SAP messages fall into 3 different categories: Error messages
(message type = E), Warnings (W) or Informational (I) messages.
An error message will prevent you from continuing your work - it is a hard stop and you need to fix the error before you can proceed. A warning message will stop your work, however, you can then bypass the warning by pressing the Enter key on your keyboard. That said, it is still good practice to investigate the cause of the warning message and address it. An information message will not stop your work and is truly just for informational purposes.
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