To share your chatbot, we recommend that you give the direct link to your Facebook Page to your user base, friends, and family. They'll be able to begin interacting with your chatbot as soon as they try to send it a message!  
This is the mobile Messenger short link, it opens directly into Facebook Messenger on mobile ! You can find it by switching the bot ON and by clicking right on the little Messenger button within

You can share a specific part of your bot conversation by adding this parameter :

Very useful if you use targeted ads.
You can change your bot’s ID in the Facebook settings. It is usually yourname@handle except if it is already taken.

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