Message type: E = Error
Message class:  /IWBEP/CM_CP -  
Message number: 204
Message text: Invalid property '&1' in expand property path '&2'
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The SAP error message /IWBEP/CM_CP204 Invalid property '&1' in expand property path '&2' typically occurs in the context of OData services when there is an issue with the properties specified in the $expand query option. This error indicates that the property you are trying to expand does not exist or is not valid in the context of the entity you are querying.
Cause: Invalid Property Name: The property name specified in the $expand clause does not match any of the properties defined in the OData model for the entity. Incorrect Navigation Path: The navigation path specified in the $expand clause is incorrect or does not lead to a valid entity. Model Changes: If the OData model has been changed (e.g., properties added or removed) and the client is using an outdated version of the model, this error can occur. Access Restrictions: The property may exist but is not accessible due to authorization restrictions or visibility
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