How To Fix /IWBEP/CM_V4_MED206 - Type '&1' is not a valid EDM type

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 206

• Message text: Type '&1' is not a valid EDM type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED206 - Type '&1' is not a valid EDM type ?

  The SAP error message /IWBEP/CM_V4_MED206 Type '&1' is not a valid EDM type typically occurs in the context of SAP Gateway and OData services. This error indicates that the system encountered a data type that is not recognized as a valid Entity Data Model (EDM) type when processing an OData request.
  Cause:
  
  Invalid Data Type: The error is often caused by the use of a data type in your OData service that is not defined or supported in the EDM. This can happen if you have custom data types or if there is a mismatch between the data type defined in the ABAP backend and what is expected in the OData service.
  Model Definition Issues: If the OData model is not correctly defined or if there are inconsistencies in the metadata, it can lead to this error.
  Changes in Data Model: If there have been recent changes to the underlying data model (like changes in the ABAP structure or data types) without updating the OData service, this error may occur.
  
  Solution:
  
  Check Data Types: Review the data types used in your OData service. Ensure that all data types are valid EDM types. Common valid types include Edm.String, Edm.Int32, Edm.Boolean, etc.
  Update OData Service: If you have made changes to the underlying data model, regenerate the OData service. You can do this by:
  
  Going to the transaction code /IWFND/MAINT_SERVICE.
  Selecting your service and clicking on "Regenerate".
  
  
  Check Metadata: Use the OData service's metadata URL (usually something like http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata) to inspect the metadata and ensure that all types are correctly defined.
  Debugging: If the issue persists, you may need to debug the OData service to identify where the invalid type is being referenced. Check the implementation of the service and any associated data models.
  Consult Documentation: Refer to SAP documentation for the specific version you are using to ensure that you are using supported data types.
  
  Related Information:
  
  EDM Types: Familiarize yourself with the list of valid EDM types as defined in the OData specification. This will help you understand what types can be used in your OData services.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on similar issues.
  Community Forums: Consider searching or posting on SAP Community forums or Stack Overflow for additional insights from other developers who may have encountered the same issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.