Data Transmission Service (DTS) allows you to add or remove objects for change tracking after you have created a change tracking task. This topic describes how to reselect objects for change tracking.


  • After you add an object, the change tracking task captures updates made to the newly selected object starting from the time when the new object was included.
  • After you remove an object, if the consumer application continues to receive updates to the removed object, you need to filter out such updates in the consumer application.


  1. Log on to the DTS console.
  2. In the left-side navigation pane, click Change Tracking.
  3. At the top of the Change Tracking page, select the region where the change tracking instance resides.
  4. Find the change tracking instance and click the instance ID.
  5. Find the target instance and click Modify Required Objects in the Actions column.
  6. In the Select Required Objects step, you can add and remove objects for change tracking. Modify objects for change tracking
    • Add objects for change tracking

      In the Required Objects list, select the required objects and click the right arrowRight arrow icon to add the objects to the Selected section.

    • Remove objects for change tracking

      In the Selected list, select the objects to be removed and click the left arrowLeft arrow icon to remove the objects.

  7. In the lower-right corner of the page, click Save and Precheck.
    • A precheck is performed before you can start the change tracking task. You can start the change tracking task only after the task passes the precheck.
    • If the task fails the precheck, click the Information icon icon next to each failed item to view details. Fix the issues based on the instructions and run the precheck again.
  8. Close the Precheck dialog box when you receive a The precheck is passed message.

After the change tracking task is created, DTS performs initialization. The initialization process takes about one minute to complete. After the initialization is complete, you can use a Kafka client to consume the tracked data. For more information, see Use a Kafka client to consume tracked data.