How To Fix /IWBEP/CM_V4_MED123 - Failed to get type descriptor for structure '&1' of entity type '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 123

• Message text: Failed to get type descriptor for structure '&1' of entity type '&2'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED123 - Failed to get type descriptor for structure '&1' of entity type '&2' ?

  The SAP error message /IWBEP/CM_V4_MED123 Failed to get type descriptor for structure '&1' of entity type '&2' typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is unable to retrieve the type descriptor for a specific structure associated with an entity type in an OData service.
  Causes:
  
  Missing or Incorrect Structure Definition: The structure referenced in the error message may not be defined correctly in the ABAP Dictionary (SE11) or may not exist at all.
  Inconsistent Metadata: There may be inconsistencies in the metadata definitions for the OData service, possibly due to changes in the underlying data model that have not been reflected in the service.
  Transport Issues: If the OData service was recently transported from one system to another, the necessary structures may not have been transported correctly.
  Authorization Issues: The user executing the OData service may not have the necessary authorizations to access the structure or entity type.
  Service Activation: The OData service may not be activated properly in the SAP Gateway.
  
  Solutions:
  
  Check Structure Definition: Verify that the structure mentioned in the error message exists in the ABAP Dictionary (SE11) and is defined correctly.
  Update Metadata: If there have been changes to the underlying data model, regenerate the metadata for the OData service. This can be done using transaction /IWFND/MAINT_SERVICE to maintain the service and regenerate the metadata.
  Check Transport Requests: If the service was transported, ensure that all necessary objects, including structures, were included in the transport request.
  Authorization Check: Ensure that the user has the necessary authorizations to access the OData service and the underlying structures.
  Service Activation: Go to transaction /IWFND/MAINT_SERVICE, find the service in question, and ensure it is activated. If necessary, reactivate the service.
  Debugging: If the issue persists, consider debugging the OData service to identify where the failure occurs. This may provide more insight into the specific cause of the error.
  
  Related Information:
  
  
  Transaction Codes:
  
  /IWFND/MAINT_SERVICE: To maintain and activate OData services.
  SE11: To check and maintain ABAP Dictionary objects.
  SE80: To access the Object Navigator for further analysis of the service and its components.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to this error message. You can search for notes in the SAP Support Portal.
  
  
  Documentation: Review the SAP Gateway documentation for more information on OData services and troubleshooting common issues.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the error message.