Submitting your bot to Facebook Messenger's Discover tab is an excellent way to gain new followers and increase your reach.
Here's how to submit your bot:
1. Your Facebook Page's admin must submit a short application. Have your Facebook Page admin go here.
2. Select the Facebook page that is connected to the bot you would like to promote in the Discover tab.
3. Scroll down to Discover Settings.
4. Click Set Up.
5. Complete the fields shown here:
6. Click Submit!