@AzmathShaik - Did one of the answers below help provide a solution your question? If yes, please click “Accept” below the best answer to resolve this post and upvote anything that was helpful. If no, please leave a comment with more feedback. Thanks.
The short answer: Nothing bad. Obviously, changes made on in
$SPLUNK_HOME/etc/deployment-apps/ will not be pulled in to the Deployment Clients. Also, you will get splunkd errors in
_internal saying that there are DC timeout/connection failures, and you will get a TON of them for every Deployment Client.