Notifications section inside the Event Builder is a place where you can tailor email and SMS notifications. Navigate to 
AI Scheduler → Events and click on:
Any existing Event → and select Notifications section from the left side menu or
Create New Event → and define event details and hosts first in order to be able to access the Notifications section
Customizing email and SMS notifications
Select Notifications section
Locate notification you'd like to edit and click on "Edit" button inside of the section
Change text and Save to keep changes
Repeat the process for other notifications
Inside the Notifications section you can edit SMS reminders as well, but only user with Super Admin permissions can turn them on, because of the additional costs that are text messages associated with.
In case you notice any extra space in your notifications, that may be because of the space added inside the template between the text, or a dot "." in the User name, which may be displayed as extra space when that specific variable is selected in email templates.
Pro tips
Additional menu where you can add another set of customized reminders is in
iClosed Workflows provide you additional level of notifications customization, emails and SMS sent to hosts, specific users or/and leads. Here're currently available triggers:
After new Event is booked
Before Event starts
After Event starts
After Event ends
After Event is cancelled
Adding Notification reminders
Select Notifications section inside the Event Builder
Locate reminder notification you'd like to edit and click on "Edit" button inside of the section.
And simply click on Add another reminder
Additional timings selection will appear, from which you'd be able choose send out time of the 2nd reminder
You can add up to 5 reminders, but bear in mind that template can't be customized for each timing. To do that, you'd need to set up a Workflow ( AI Scheduler → Automations → Workflows) that is available to Business and Enterprise users only.
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