Yes!
You can program messages that will be pushed to users at the time of your choice. These can be used to signal the start of a talk, or to highlight a particular sponsor, for example. These messages can include links directly to an exhibitor’s booth or to a specific session.
These messages can be viewed once or remain in the users’ notification history: it’s up to you.
Finally, you can filter these messages according to the users’ roles (organizers only, exhibitors, speakers, attendees, moderators).
If you’ve forgotten to schedule a notification, no problem, you can also send an instant public message whenever you want during the event!