Meta, the parent company of Instagram and Facebook, will require all Shops to have checkout enabled as part of its efforts to build a seamless shopping experience for users and help businesses grow. Beginning June 5, onboarding of new shops via Commerce Manager and Shopify will only be with checkout on Facebook and Instagram enabled. By August 10, all other partners will need to have checkout-enabled shops, and by April 2024, Shops without checkout on Facebook and Instagram enabled will no longer be accessible. Meta is notifying users that in order to maintain their shop, they must enable checkout before April of next year. The move indicates Meta's focus on being the sole checkout provider for Shops on both platforms, with implications on organic product tagging, creating custom audiences, and tagging products via the Content Publishing API. 
https://techcrunch.com/2023/04/27/instagram-facebook-force-checkout-experience-shops-soon/