title: How to skip DMS validation on records which are deleted in target DB in DMS task "full load + ongoing replication"?
body: <p>Continuously I am running DMS task with &quot;full load + on-going replication&quot; and enabled &quot;validation&quot; as well. Replication is working as expected but validation is getting failed when I delete old records from target database.</p>
  <p>I was testing the below scenario (example). My DMS task is running continuously -</p>
  <ol>
  <li>day 1 - '500' records replicated to target from source and DMS
  validation task is successful.</li>
  <li>day 2 - before loading another '4000'
  new records into source database I deleted 'day 1' '500' records
  from target database. But validation is failed.</li>
  </ol>
  <p>Here, observed that DMS task replicated only new '4000' records to target database, which is expected but it's trying to validate all the records (500 + 4000) then it is failed.
  <a href="https://i.stack.imgur.com/iAUXI.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iAUXI.png" alt="enter image description here" /></a></p>
  <p>It looks like, DMS task is trying to validate deleted '500' records as well. When we enable CDC it should perform validation on on-going changes not already replicated records. Why it's performing entire validation every time? How to control this in DMS so that it can only validate on-going changes?</p>