The 24+1 rule regulates the number of Messages a Business can send to a user.
The two components of the Facebook Messenger 24+1 rule:
- A business may send a user as many messages as it wants within 24h of the user’s last interaction, such as clicking a Quick-reply, a button that triggers a message or types a message
- After the 24h, the business may send the user one more message
If the user interacts with a message within the 24h, or the one message sent thereafter, the clock starts anew and the 24h start over again.
Which pages are exempt:
If you think your page is exempt, you can apply for Subscription Messaging.