How To Fix /IWBEP/CM_V4_MED161 - Service reference '&1' not found for navigation property '&2'

/IWBEP/CM_V4_MED161 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 161

• Message text: Service reference '&1' not found for navigation property '&2'

Self-Explanatory Message

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/IWBEP/CM_V4_MED161 - Details

• The SAP error message /IWBEP/CM_V4_MED161 indicates that there is an issue with a service reference in an OData service. Specifically, it means that the service reference for a navigation property is not found. This can occur in various scenarios when working with SAP Gateway and OData services.
  
  Cause:
  
  Missing Service Reference: The service reference specified in the error message does not exist in the OData service definition.
  Incorrect Navigation Property: The navigation property specified may not be correctly defined in the data model or may not exist.
  Service Activation Issues: The OData service may not be properly activated or registered in the SAP Gateway.
  Model Changes: If there have been recent changes to the data model (like adding or removing entities or navigation properties), the service might not reflect those changes.
  Authorization Issues: The user may not have the necessary authorizations to access the navigation property.
  
  
  Solution:
  
  
  Check Service Definition:
  
  Go to the SAP Gateway Service Builder (transaction code