Integration with Samsung Food's 'preferred store' functionality

Samsung Food (formerly Whisk) currently allows users to select a 'preferred store'. The app lets users create a shopping list from a meal plan/recipe. The preferred store is then referenced to lead the user straight to checkout. Currently, the following stores are supported in the Samsung Food app for UK users: Tesco Sainsbury's Ocado Amazon Fresh It seems in most cases that the store has some endpoint from which the service actually puts the user at checkout, (via a login endpoint) so there would presumably be some API work to be done by Trolley here. I'm not sure what would be the right approach to reach out to Samsung about this to integrate on their end, but I think linking this to Trolley's list functionality could be worthwhile as it seems as though there'd be a lot of overlap between the two apps in terms of users.