How To Fix /IWBEP/SBOD320 - Structure based annotation not allowed for &1 as it has no ABAP Structure

/IWBEP/SBOD320 - Overview

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 320

• Message text: Structure based annotation not allowed for &1 as it has no ABAP Structure

Self-Explanatory Message

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/IWBEP/SBOD320 - Details

• The SAP error message /IWBEP/SBOD320 Structure based annotation not allowed for &1 as it has no ABAP Structure typically occurs in the context of SAP Gateway and OData services when there is an attempt to use structure-based annotations on an entity that does not have a corresponding ABAP structure defined.
  
  Cause:
  
  Missing ABAP Structure: The entity type you are trying to annotate does not have an associated ABAP structure. This means that the system cannot find the necessary metadata to apply the structure-based annotations.
  Incorrect Configuration: The OData service might be incorrectly configured, or the entity type might not be properly defined in the service.
  Development Environment Issues: There might be issues in the development environment, such as missing transport requests or inconsistencies in the data dictionary.
  
  
  Solution:
  
  
  Check ABAP Structure: Ensure that there is a corresponding ABAP structure for the entity type you are trying to annotate. You can do this by:
  
  Going to transaction SE11