pada os ticket ini apakah ada untuk nitifikasi untuk user atau klien apabila sudah di balas oleh admin atau agent?
notifikasi
You would have to tell us what Autoresponders (Users) and Alerts and Notices (Agents) you have enabled.
You would go to: Admin panel -> Settings -> Tickets
Then click on the Autoresponder or Alerts and Notices tabs.
do you mean that alert by email?
Autoresponders (Users) and Alerts and Notices (Agents) are sent by email, yes.