How To Fix SD_CDS_ENTITY093 - @AbapCatalog.preserveKey: only allows key word true/false but not &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SD_CDS_ENTITY - Messages for STOBS/entities

• Message number: 093

• Message text: @AbapCatalog.preserveKey: only allows key word true/false but not &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SD_CDS_ENTITY093 - @AbapCatalog.preserveKey: only allows key word true/false but not &1 ?

  The SAP error message SD_CDS_ENTITY093 @AbapCatalog.preserveKey: only allows key word true/false but not &1 typically occurs in the context of Core Data Services (CDS) views in SAP ABAP. This error indicates that there is an issue with the @AbapCatalog.preserveKey annotation in your CDS view definition.
  Cause:
  The error is caused by an incorrect value being assigned to the @AbapCatalog.preserveKey annotation. This annotation is used to specify whether the key of the CDS view should be preserved when the view is used in certain contexts. The valid values for this annotation are strictly true or false. If any other value is provided (including a variable or an incorrect string), the system will throw this error.
  Solution:
  To resolve this error, you need to check the definition of your CDS view and ensure that the @AbapCatalog.preserveKey annotation is set correctly. Here’s how you can do that:
  
  
  Open the CDS View Definition: Go to the ABAP Development Tools (ADT) in Eclipse or the relevant transaction in SAP GUI where your CDS view is defined.
  
  
  Locate the Annotation: Find the line where @AbapCatalog.preserveKey is defined.
  
  
  Correct the Value: Ensure that the value assigned to @AbapCatalog.preserveKey is either true or false. For example:
  @AbapCatalog.preserveKey: true
  
  
  Save and Activate: After making the necessary changes, save and activate the CDS view.
  
  
  Test the CDS View: Execute the CDS view to ensure that the error is resolved.
  
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) is a framework for defining semantically rich data models in SAP. It allows you to define views on database tables in a way that is independent of the underlying database.
  Annotations: Annotations in CDS views provide metadata that can influence the behavior of the view, such as how it is treated in the context of OData services, performance optimizations, and more.
  Documentation: For more information on CDS annotations and their usage, refer to the official SAP documentation or the ABAP Development Guide.
  
  If you continue to experience issues after making these changes, consider checking for other potential syntax errors in your CDS view or consult with your SAP Basis or ABAP development team for further assistance.