How To Fix SDDIC_ADT_DDLX201 - CDS Metadata Extensions can only be edited using ADT in Eclipse

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDIC_ADT_DDLX - Messages for CDS Metadata Extension

• Message number: 201

• Message text: CDS Metadata Extensions can only be edited using ADT in Eclipse

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDIC_ADT_DDLX201 - CDS Metadata Extensions can only be edited using ADT in Eclipse ?

  The SAP error message SDDIC_ADT_DDLX201 indicates that you are trying to edit Core Data Services (CDS) metadata extensions in a way that is not supported. Specifically, this error occurs when you attempt to modify CDS views or their extensions outside of the ABAP Development Tools (ADT) in Eclipse.
  Cause:
  The error arises because:
  
  CDS metadata extensions are designed to be edited exclusively within the ADT environment in Eclipse. This is a design choice by SAP to ensure that the development environment provides the necessary tools and checks for working with CDS artifacts.
  Attempting to edit these extensions in other environments (like SE11 or SE80 in the SAP GUI) will trigger this error.
  
  Solution:
  To resolve this error, you should:
  
  Use ADT in Eclipse: Ensure that you are using the ABAP Development Tools in Eclipse to edit your CDS views and their extensions. If you do not have ADT installed, you will need to download and install it.
  Open the Correct Project: Make sure you have the correct ABAP project opened in Eclipse where your CDS views are located.
  Edit the CDS View: Navigate to the CDS view or its extension in the Project Explorer, right-click on it, and select "Open" or "Edit" to make your changes.
  Check for Updates: Ensure that your ADT and Eclipse are up to date, as updates may include bug fixes and improvements related to CDS development.
  
  Related Information:
  
  ADT Installation: If you need to install ADT, you can find the installation guide on the SAP Help Portal or the SAP Community.
  SAP Documentation: Refer to the official SAP documentation for Core Data Services and ABAP Development Tools for detailed information on how to work with CDS views.
  SAP Community: Engage with the SAP Community forums for discussions and solutions related to CDS and ADT issues.
  
  By following these steps, you should be able to edit your CDS metadata extensions without encountering the SDDIC_ADT_DDLX201 error.