To create this trigger, first navigate to the "Triggers" tab and then scroll down to find the "Start a flow when Facebook refers a contact" option: 


Next, choose the channel you want this trigger to operate on and the flow you want to start:

Note that the referrer ID is optional. It can be embedded in a link to be customized with the flow you use. For more information on referrals see here

Once you've created this trigger, the flow will be started when a contact initiates a conversation with your Facebook Messenger bot. 

Make sure to check out our guide on creating and submitting a Facebook Messenger bot to get your bot working properly.

Send us a message via the support widget in the bottom right corner with any questions you may have. 

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