The activities module helps users track tasks, events, and calls, with each parameter having its own vital information like priority level, status, and due date.
The tasks, events, and calls can either be stand-alone records or associated with tickets.
Creating a task
Every ticket will have a to-do list for the agents to perform before it can be marked as closed. Tasks are the to-do list that ensures that the actions associated with a ticket are done in a time-bound and orderly manner.
There can also be stand-alone tasks. For example, a user can create a task to perform a routine security scan, conduct a training session for new employees, etc. that are unrelated to a ticket.
For every task, the agents can set reminders, priority, due date, and more to stay on top of the project.
To edit or delete a task, click on the respective icons.
Creating an event
Events are calendared activities. It helps the agents schedule an activity that has a specific place, time, and duration, so that they can keep better track of their programs and schedules.
For example, if a manager wants to set a reminder for the monthly review meeting, an event can be created to notify the team members about it, without having to create a ticket.
Users can edit

or delete

the created event.
Making calls
Calls help users keep track of inbound and outbound calls in Zoho Desk. In the mobile app, users can also schedule calls so that the app pops up a reminder when it's time to dial in.

The users cannot make calls using the mobile app; they can only record the details of inbound and outbound calls and schedule calls.
Users can edit

or delete

the created call.
For every task, event, and call, the users can add comments, attachments, and time entries present in the subtab of the activity detail page.
Activity views
System-defined standard views categorize the activities as tasks, events, and calls.
In the activities view, the users can star or unstar views through the edit views screen and also reorder the views from the Edit Views screen.