Post notices for the whole school, a class, a section or staff only, star the urgent ones, and send them to parents.
Click Announcements in the left sidebar, or on the Dashboard. It opens the Communications Hub on the Announcements tab.
With WhatsApp connected, the message goes to each parent on its own. Until then, Announcement published shows a WhatsApp button for each family, e.g. 3 link ready, open each below. Tap each one to open that parent's chat with the message ready, then click Done. Brothers and sisters share one message. The wording comes from the announcement template, and every message is recorded in the Message Log.

Announcements are listed newest first with the date, title, message and audience; starred ones are marked as important. Search by title, message or audience. Use Copy to copy the text, for example to paste into your school's WhatsApp groups, or the bin to delete an announcement.
The newest announcements also appear under Recent Announcements on the Dashboard, and parents see announcements for their child's class in the Parent App.

Send & Test Message, Message Templates and Message Log are covered in WhatsApp & Messages.