Today Facebook has announced that it's unifying its various payment services under one umbrella. It's called Facebook Pay, and it will work in the Facebook app, but also across Messenger, Instagram, and WhatsApp. So you finally have one payment solution in all of the company's apps. Facebook Pay is rolling out on Facebook itself and Messenger this week in the US for fundraisers, in-game purchases, event tickets, person-to-person payments, as well as purchases from select Pages and businesses on Facebook Marketplace. The Instagram and WhatsApp integration is due to arrive "over time"....
Source: https://www.gsmarena.com/facebook_pay_launches_in_the_us_works_across_messenger_instagram_and_whatsapp_too-news-40068.php