How To Fix /IWFND/CM_DESIGNTIME103 - Service mapping ID '&1' already exists; select a different one

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_DESIGNTIME -

• Message number: 103

• Message text: Service mapping ID '&1' already exists; select a different one

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_DESIGNTIME103 - Service mapping ID '&1' already exists; select a different one ?

  The SAP error message /IWFND/CM_DESIGNTIME103 indicates that there is an attempt to create or register a service mapping ID that already exists in the system. This typically occurs in the context of SAP Gateway and OData services when you are trying to define a new service mapping but the ID you are using is already in use.
  Cause:
  
  Duplicate Service Mapping ID: The most common cause of this error is that the service mapping ID you are trying to create is already registered in the system. Each service mapping ID must be unique.
  Incorrect Configuration: There may be a misconfiguration in the service registration process, leading to attempts to register the same ID multiple times.
  Transport Issues: If you are transporting objects between systems, there may be conflicts if the same service mapping ID exists in both the source and target systems.
  
  Solution:
  
  
  Check Existing Service Mappings: 
  
  Go to the SAP Gateway Service Builder (transaction code SEGW) and check the existing service mappings. Look for the service mapping ID that you are trying to create.
  If it exists, you can either choose a different ID or modify the existing one if appropriate.
  
  
  
  Use a Unique ID: 
  
  When creating a new service mapping, ensure that the ID you are using is unique. You can append a suffix or prefix to the ID to differentiate it.
  
  
  
  Delete or Modify Existing Mapping: 
  
  If the existing service mapping is no longer needed, you can delete it. Be cautious with this approach, as it may affect other functionalities that rely on that mapping.
  Alternatively, you can modify the existing mapping if it is appropriate to do so.
  
  
  
  Check Transport Requests: 
  
  If you suspect that the issue is related to transport requests, check the transport logs and ensure that there are no conflicts. You may need to adjust the transport requests accordingly.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or notes related to service mapping and OData services for any additional guidance or best practices.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SEGW: Service Builder for OData services.
  /IWFND/MAINT_SERVICE: Manage OData services.
  
  
  
  SAP Notes: 
  
  Check SAP Notes for any known issues or patches related to service mapping and OData services.
  
  
  
  SAP Community: 
  
  Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  
  By following these steps, you should be able to resolve the error and successfully create or manage your service mappings in SAP Gateway.