How To Fix SDDIC_ADT_DDLA201 - CDS Annotation Definitions can only be edited using ADT in Eclipse

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDIC_ADT_DDLA - Messages for Annotation Definition Design Time

• Message number: 201

• Message text: CDS Annotation Definitions can only be edited using ADT in Eclipse

Self-Explanatory Message

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• What is the cause and solution for SAP error message SDDIC_ADT_DDLA201 - CDS Annotation Definitions can only be edited using ADT in Eclipse ?

  The SAP error message SDDIC_ADT_DDLA201 indicates that you are trying to edit Core Data Services (CDS) annotation definitions in a way that is not supported. Specifically, this error occurs when you attempt to modify CDS annotations directly in the SAP GUI or other non-ADT (ABAP Development Tools) environments, which is not allowed.
  Cause:
  The primary cause of this error is that CDS annotations are designed to be edited using the ABAP Development Tools (ADT) in Eclipse. The ADT provides a specialized environment for working with CDS views and annotations, ensuring that the necessary tools and features are available for proper editing and validation.
  Solution:
  To resolve this error, follow these steps:
  
  
  Use ADT in Eclipse:
  
  Ensure you have the ABAP Development Tools installed in your Eclipse IDE.
  Open your CDS annotation definitions in the ADT environment. You can do this by navigating to the relevant package or object in the Project Explorer and opening the CDS view or annotation definition.
  
  
  
  Edit Annotations:
  
  Make your changes to the CDS annotations within the ADT environment. The ADT provides syntax highlighting, validation, and other features that help you edit CDS definitions correctly.
  
  
  
  Activate Changes:
  
  After making your changes, ensure you activate the CDS view or annotation definition in ADT. This will apply your changes and make them available for use in your application.
  
  
  
  Related Information:
  
  ADT Installation: If you do not have ADT installed, you can download it from the Eclipse Marketplace. Make sure to install the version compatible with your SAP system.
  Documentation: Refer to the official SAP documentation for more information on working with CDS views and annotations in ADT. This documentation provides guidelines on best practices and features available in the ADT environment.
  SAP Community: If you encounter further issues or have specific questions, consider reaching out to the SAP Community forums where you can find discussions and solutions related to similar problems.
  
  By following these steps and using the appropriate tools, you should be able to edit your CDS annotation definitions without encountering the SDDIC_ADT_DDLA201 error.