I have developed a XF application, though it is only being used for iOS at this point in time.
I want to add In App Purchase functionality to the app, so I am using PlugIn.InAppBilling package for this.
I believe that I have set up the products on the App Store correctly - I can use the plugin to return a list of products without any issues.
But on my test device whenever I attempt a purchase, I get a generic "Unknown Error" message returned.
Any idea why I can call GetProductInfoAsync to return the products, yet the actual purchase fails?
Is there something in the client that I need to configure?
Is there something on the server that I have missed? Something to do with the Sandbox user?
Is there somewhere on the App Store Connect that I can see why a purchase failed?
Thanks for your help.