Message type: E = Error
Message class:  SADL_RAP_OPXY_EDMX - RESTful ABAP Odata Proxy Support 
Message number: 012
Message text: Service Definition &1 already exists
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The SAP error message SADL_RAP_OPXY_EDMX012 Service Definition &1 already exists typically occurs in the context of the SAP RAP (Rapid Application Programming) model when you are trying to create a service definition that already exists in the system. This can happen during the development of OData services or when working with service definitions in the SAP Business Technology Platform.
Cause: The error indicates that there is an attempt to create a service definition with a name that is already in use. This can happen due to: Duplicate service definitions being created in the same namespace. An existing service definition that was not properly deleted or was left over from a previous development attempt. A naming conflict with another service definition in the same or a different package.
Solution: To resolve this error, you can take the following steps: Check Existing Service Definitions: Use transaction code SEGW (Gateway Service Builder) or SE80 (Object Navigator) to check if the service definition
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