How To Fix /IWBEP/CM_V4_MED347 - Entity set path contains property '&1' with invalid type

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 347

• Message text: Entity set path contains property '&1' with invalid type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED347 - Entity set path contains property '&1' with invalid type ?

  The SAP error message /IWBEP/CM_V4_MED347 indicates that there is an issue with the entity set path in an OData service. Specifically, it states that the entity set path contains a property that has an invalid type. This typically occurs when the OData service is trying to access a property that is not correctly defined or does not match the expected data type.
  Causes:
  
  Incorrect Data Type Definition: The property in the entity set may have been defined with an incorrect data type in the underlying data model.
  Mismatch Between Metadata and Implementation: There may be a mismatch between the metadata definition of the OData service and the actual implementation in the backend.
  Invalid Navigation Property: If the entity set path includes navigation properties, they may not be correctly defined or may point to an invalid entity.
  Changes in Data Model: If there have been recent changes to the data model (e.g., adding or modifying properties), the OData service may not have been updated accordingly.
  
  Solutions:
  
  Check Entity Definition: Review the entity definition in the data model to ensure that the property types are correctly defined and match the expected types in the OData service.
  Update OData Metadata: If there have been changes to the data model, regenerate the OData metadata to ensure it reflects the current state of the data model.
  Validate Navigation Properties: Ensure that any navigation properties used in the entity set path are correctly defined and point to valid entities.
  Debugging: Use transaction codes like /IWFND/ERROR_LOG to check for additional error details that may provide more context on the issue.
  Test with Different Clients: Sometimes, testing the OData service with different clients (like Postman or SAP Gateway Client) can help isolate the issue.
  
  Related Information:
  
  OData Service Documentation: Review the OData service documentation to understand the expected structure and types of properties.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific error message.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they found effective.
  
  By following these steps, you should be able to identify and resolve the issue causing the /IWBEP/CM_V4_MED347 error message.