How To Fix /IWBEP/CM_MGW_RT100 - Property (external name) '&1' not found for entity '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 100

• Message text: Property (external name) '&1' not found for entity '&2'

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_MGW_RT100 - Property (external name) '&1' not found for entity '&2' ?

  The SAP error message /IWBEP/CM_MGW_RT100 indicates that there is an issue with the OData service where a property (external name) is not found for a specified entity. This error typically occurs in the context of SAP Gateway and OData services when the requested property does not exist in the defined entity type.
  Cause:
  
  Missing Property Definition: The property specified in the request does not exist in the entity type defined in the OData service.
  Typographical Error: There may be a typo in the property name in the request.
  Service Metadata Issues: The OData service metadata might not be updated or might not reflect the current state of the underlying data model.
  Entity Type Mismatch: The entity type being referenced may not be correctly defined or may have been changed without updating the service.
  Authorization Issues: Sometimes, the property may exist, but the user does not have the necessary permissions to access it.
  
  Solution:
  
  
  Check Property Definition: Verify that the property specified in the error message is correctly defined in the entity type of the OData service. You can do this by checking the service's metadata (usually accessible via the service URL with $metadata).
  
  
  Correct Typographical Errors: Ensure that the property name in the request matches exactly with the property name defined in the OData service, including case sensitivity.
  
  
  Update Service Metadata: If changes have been made to the underlying data model, ensure that the OData service is regenerated and activated. This can be done in the SAP Gateway Service Builder (transaction code SEGW).
  
  
  Check Entity Type: Make sure that the entity type being referenced in the request is the correct one and that it has not been modified or deleted.
  
  
  Review Authorizations: Check if the user has the necessary authorizations to access the property. This can be done by reviewing the roles and authorizations assigned to the user.
  
  
  Debugging: If the issue persists, consider debugging the OData service to trace the request and identify where the property lookup is failing.
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SEGW: Service Builder for OData services.
  /IWBEP/REG_SERVICE: Register OData services.
  /IWBEP/ERROR_LOG: Check error logs for OData services.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues with OData services or specific error messages.
  
  
  Documentation: Refer to the SAP Gateway documentation for more details on OData service development and troubleshooting.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the /IWBEP/CM_MGW_RT100 error message.