Announcements are how you tell followers something changed — a deadline, an event, a new resource.
Where they show up
On the page itself as a banner, and in followers’ inboxes. Viewers don’t receive them; only people who followed do.
Scheduling
Send now or pick a date and time. Scheduled announcements wait under their own tab until they go out, and you can edit or delete them until then.
Sending to more than one page
From the Pages Library you can select several pages and send one announcement to all of them. Anyone who follows more than one of those pages only gets it once.