Go to the service desk module on side navigation menu and choose "Tickets" section.

Select the ticket that you want to manage the scheduled contact time.

Once the ticket has been opened, you will see a "Scheduled contact time" drop-down section on the left-hand side of the screen after customer details and attachments. Click on it.

In the drop-down list, you can view fields for “Scheduled Date”, “Start Time”, and “End Time”.

If you want to change the already scheduled date, time, or duration. You can edit those changes by editing those fields. Click “Save changes” to save the edited changes.