Add Facebook page
Now it's time to add information about your Facebook Page in Dixa.
Go to your Facebook Page and find the About section.
Copy the Page ID. Paste it in the ID text field in Dixa. Also, insert a name of your choice it in the Name text field on this screen.
Now go back to the App in Facebook Developers and choose Messenger and Settings. Find the section called Access Tokens and click Generate Token.
Copy the token and paste it to Dixa in the field Page token.
Go back to the Page Settings, and select Messenger Platform. Under the Connected Apps section click the Configure button.
Select the Dixa app as the Primary Receiver for Handover Protocol.
Also, make sure the Response Method of the page is set to Responses are all provided by people.
The next step is submitting the App for review and make the App public.