How To Fix SADL_GW_DT_CDS012 - Semantic key element &1 is unknown or hidden.

SADL_GW_DT_CDS012 - Overview

• Message type: E = Error

• Message class: SADL_GW_DT_CDS - Messages CDS Checks

• Message number: 012

• Message text: Semantic key element &1 is unknown or hidden.

What causes this issue?

The element used in the semantic key annotation is invalid. Only
elements that are exposed in the CDS view and that are not annotated as
'@Consumption.hidden' can be used as semantic key.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Use a valid element at the semantic key annotation in the CDS view.

Procedure for System Administrators

Contact the corresponding developer of the CDS view to correct the
error.

Error message extract from SAP system. Copyright SAP SE.

SADL_GW_DT_CDS012 - Details

• The SAP error message SADL_GW_DT_CDS012 indicates that there is an issue with a semantic key element in a Core Data Services (CDS) view or a related data model. This error typically arises when the system cannot find a specified key element, which may be due to it being either unknown or hidden.
  Causes:
  
  Missing Key Element: The specified key element does not exist in the CDS view or the underlying data model.
  Hidden Key Element: The key element is defined in the CDS view but is not exposed or is marked as hidden.
  Incorrect Mapping: There may be an issue with how the key elements are mapped in the data model or in the service definition.
  Changes in Data Model: If there have been recent changes to the data model or CDS view, the service might not be updated accordingly.
  Authorization Issues: The user may not have the necessary authorizations to access the key element.
  
  Solutions:
  
  
  Check the