How To Fix /IWFND/CM_MGW_RT030 - Duplicate resource

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_MGW_RT -

• Message number: 030

• Message text: Duplicate resource

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_MGW_RT030 - Duplicate resource ?

  The SAP error message /IWFND/CM_MGW_RT030 Duplicate resource typically occurs in the context of SAP Gateway and OData services. This error indicates that there are duplicate resource definitions in your OData service, which can lead to conflicts when the service is being accessed.
  Cause:
  
  Duplicate Entity Sets: The most common cause of this error is the presence of duplicate entity sets in the OData service definition. This can happen if the same entity is defined multiple times in the service metadata.
  Multiple Service Implementations: If multiple service implementations are trying to expose the same entity or resource, it can lead to this error.
  Incorrect Annotations: Sometimes, incorrect or conflicting annotations in the service definition can also lead to this issue.
  
  Solution:
  
  Check Service Metadata: Review the service metadata (usually accessible via the service URL with $metadata appended) to identify any duplicate entity sets or types.
  Remove Duplicates: If you find duplicate entity sets, remove or rename them in the service definition. Ensure that each entity set has a unique name.
  Review Service Implementation: If you have multiple service implementations, ensure that they do not expose the same entity or resource. Consolidate them if necessary.
  Regenerate Service: If you have made changes to the data model or service definition, regenerate the service and re-deploy it to ensure that the changes take effect.
  Check Annotations: Review the annotations in your service definition for any conflicts or duplicates that might be causing the issue.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like /IWFND/MAINT_SERVICE to manage your OData services and check for duplicates.
  Service Activation: Ensure that the service is properly activated after making changes. You can do this in the same transaction code mentioned above.
  Debugging: If the issue persists, consider using debugging tools to trace the service calls and identify where the duplication is occurring.
  SAP Notes: Check for any relevant SAP Notes or documentation that might provide additional insights or solutions related to this error.
  
  By following these steps, you should be able to resolve the /IWFND/CM_MGW_RT030 Duplicate resource error in your SAP environment.