Apart from promoting your Facebook page in your social widgets and School Information, you can also integrate with your Facebook Messenger. To do so:
1. Navigate to Chat Plugin and follow the mentioned steps for the chat plugin creation.
2. Don't forget to add your school's URL in the plugin Website confirmation.
3. The Facebook page related to the chat plugin needs to be a published one, otherwise, console errors will be displayed when trying to reach the page.
4. You need to whitelist your domain according to the steps mentioned here.
5. As soon as you complete those steps, you need to add the code in your Custom Code section in your School, under the <head> logged in and logged out fields.