Click the add button at the top right of the calendar and choose Quick Event.
Enter the Event Title (required), the date, and the start and end times.
Optionally pick a colour and a reminder (15 minutes, 30 minutes, 1 hour or 1 day before).
Save. The entry appears on the calendar with no project attached.
Use Quick Event whenever there is no accepted estimate yet. New Job/Task is for work tied to a project.
Rules and limits
A Quick Event does not require a client record, so leads can be scheduled before they become clients.
Still stuck?
If a step does not match what you see on screen, stop there and open a ticket from Support > My Tickets with a screenshot of that step. The team will look at the account directly.