How To Fix /IWBEP/CM_CP095 - Mapping error: Entity type '&1' with base type not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 095

• Message text: Mapping error: Entity type '&1' with base type not supported

Self-Explanatory Message

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_CP095 - Mapping error: Entity type '&1' with base type not supported ?

  The SAP error message /IWBEP/CM_CP095 Mapping error: Entity type '&1' with base type not supported typically occurs in the context of SAP Gateway and OData services. This error indicates that there is an issue with the mapping of an entity type in your OData service, specifically that the entity type is based on a type that is not supported for the operation you are trying to perform.
  Causes:
  
  Unsupported Base Type: The entity type you are trying to use is based on a data type that is not supported by the OData service. This can happen if the base type is a complex type or a type that does not conform to the expected structure.
  Incorrect Metadata: The metadata definition for the OData service may not be correctly defined, leading to issues in how the entity types are interpreted.
  Model Configuration Issues: There may be issues in the way the data model is configured in the SAP Gateway service.
  Version Compatibility: The version of the SAP Gateway or the underlying system may not support certain features or types.
  
  Solutions:
  
  Check Entity Type Definition: Review the definition of the entity type in the data model. Ensure that it is based on a supported base type (e.g., a simple type or a valid entity type).
  Update Metadata: If there are changes in the underlying data model, ensure that the metadata for the OData service is updated. You can regenerate the metadata by using transaction code /IWFND/MAINT_SERVICE and selecting the service to refresh.
  Review Service Implementation: Check the implementation of the OData service to ensure that it correctly handles the entity types and their relationships.
  Check for Complex Types: If the entity type is based on a complex type, consider changing it to a simple type or a supported entity type.
  Debugging: Use the SAP Gateway Client (transaction /IWFND/GW_CLIENT) to test the OData service and see if you can reproduce the error. This can help identify the specific request causing the issue.
  Consult Documentation: Refer to the SAP documentation for the specific version of the Gateway you are using to ensure that you are following best practices and that your configurations are correct.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered and resolved similar issues.
  SAP Help Portal: Utilize the SAP Help Portal for detailed documentation on OData services and entity type definitions.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.