How To Fix /IWBEP/CM_V4_MED213 - Primitive type '&1' already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 213

• Message text: Primitive type '&1' already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED213 - Primitive type '&1' already exists ?

  The SAP error message /IWBEP/CM_V4_MED213 Primitive type '&1' already exists typically occurs in the context of SAP Gateway and OData services. This error indicates that there is an attempt to define a primitive type (like a string, integer, etc.) that has already been defined in the system. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Duplicate Definition: The error arises when there is an attempt to create a primitive type with a name that already exists in the metadata of the OData service.
  Model Conflicts: If multiple OData services or models are being defined and they share the same primitive type name, this can lead to conflicts.
  Transport Issues: If changes are transported from one system to another, and the same primitive type is defined in both systems, it can lead to this error.
  
  Solutions:
  
  
  Check Existing Definitions: 
  
  Use transaction code SE11 (Data Dictionary) or SE80 (Object Navigator) to check if the primitive type already exists. If it does, you may need to modify your service to use the existing type instead of trying to create a new one.
  
  
  
  Rename the Primitive Type: 
  
  If you have control over the definition, consider renaming the new primitive type to avoid the conflict.
  
  
  
  Clear Cache: 
  
  Sometimes, the issue can be related to caching. Clear the cache of the OData service using transaction code /IWFND/CACHE_CLEANUP and then regenerate the service.
  
  
  
  Check Service Implementation: 
  
  Review the implementation of your OData service to ensure that you are not inadvertently trying to redefine a primitive type.
  
  
  
  Review Transport Requests: 
  
  If the error occurred after a transport, check the transport requests to ensure that they do not contain conflicting definitions.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or community forums for any specific notes or updates related to the version of SAP you are using.
  
  
  
  Related Information:
  
  SAP Gateway: This is the technology that allows you to connect devices, environments, and applications to SAP systems. Understanding how it handles data models can help in troubleshooting.
  OData Services: Familiarize yourself with how OData services are structured and how primitive types are defined within them.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support or consulting with a colleague who has experience with SAP Gateway and OData services.