Your Facebook username, or your Page's link.
The part after facebook.com/ in your Page's address.
Only for Pages with a Messenger bot or automation that reads it.
The Messenger chat that opens. They type the first message.
https://m.me/mayaceramics
Ready. Opens a chat in Messenger, or messenger.com on a computer.
m.me links work most reliably for Facebook Pages. Links to personal profiles depend on each person's message settings.
Free Messenger Link Generator by Hiyaly