Navigate to Settings > Global Setup > Broadcast Message Templates.
Within the notification templates, messages can be defined in either the Email/Mailbox
Message or SMS Message box. The Email/Mailbox Message text box doesn't have a character
limit but the SMS is limited to 1400 characters.
An iCalendar attachment and appointment can be defined and
is supported for both Email/Mailbox.
Once created, these templates are stored in the Company Notifications configuration area (Global Setup > Notifications) for later use/configuration.