How To Fix /IWBEP/SBOD405 - Enter a Target Type for Navigation Property '&1&2&3'

/IWBEP/SBOD405 - Overview

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 405

• Message text: Enter a Target Type for Navigation Property '&1&2&3'

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.

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/IWBEP/SBOD405 - Details

• The SAP error message /IWBEP/SBOD405 Enter a Target Type for Navigation Property '&1&2&3' typically occurs in the context of SAP Gateway and OData service development. This error indicates that there is a navigation property defined in your OData model that does not have a corresponding target type specified. 
  
  Cause:
  
  Missing Target Type: The navigation property in your entity type is defined, but the target type (the entity type it should navigate to) is not specified.
  Incorrect Configuration: There might be a misconfiguration in the OData model where the navigation property is not properly linked to its target entity.
  Model Definition Issues: The issue could arise from the way the data model is defined in the ABAP backend, particularly in the Data Model (CDS Views or ABAP Dictionary).
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Navigation Property Definition:
  
  Go to the Data Model (e.g., in the SEGW transaction for OData services).
  Locate the entity type