How To Fix /IWBEP/CM_V4_MED139 - Navigation property binding: Invalid path '&1'

/IWBEP/CM_V4_MED139 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 139

• Message text: Navigation property binding: Invalid path '&1'

Self-Explanatory Message

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/IWBEP/CM_V4_MED139 - Details

• The SAP error message /IWBEP/CM_V4_MED139 indicates that there is an issue with the navigation property binding in an OData service. Specifically, the error message states that the path provided for the navigation property is invalid. This can occur in various scenarios when working with OData services in SAP Gateway.
  Cause
  The error can be caused by several factors, including:
  
  
  Incorrect Navigation Property Name: The navigation property specified in the request does not match any of the defined navigation properties in the OData model.
  
  
  Model Definition Issues: The OData service's metadata might not be correctly defined, leading to discrepancies between the expected and actual navigation properties.
  
  
  Data Model Changes: If there have been recent changes to the underlying data model (e.g., changes in the database or the data structure), the OData service may not reflect these changes.
  
  
  Incorrect URL Format: The URL used to access the OData service might be incorrectly formatted, leading to an invalid path