Follow the given steps to link an activity to a ticket.

1. Go to the activity detail page to which you want to link the ticket.
2. Select the Link Ticket under the Linked Items section on the right sidebar.

3. In the dialog box that appears, search and select the ticket you want to associate with the activity.

Alternatively, you can also link an activity to a ticket using the Create Activity dialog by following the steps below:

1. Go to the ticket details page and navigate to the Activities tab.
2. Click the Create Activity button.

3. Scroll to the Ticket field.

To change a ticket, follow the given steps.

1. Click the Ticket field.
2. Search for the ticket you want to link.
3. Select the ticket to confirm.

The activity will be linked to the ticket.

You can also examine the linked activities on the ticket detail page under the Activities tab.