Meta for Business

Facebook is starting to test a new feature to help businesses drive sales through the platform.
This feature allows users on desktop or mobile to click a 'Buy' call-to-action button on ads and Page posts, enabling them to purchase products directly without leaving Facebook.
The payment experience is designed with privacy and security in mind; credit or debit card information shared with Facebook is not shared with other advertisers, and users can choose to save payment details for future purchases.
Currently, the test is limited to a few small and medium-sized businesses in the US, with more information to be shared based on feedback.