Hi,
I'm trying to make in-app purchase work in my app. This is first app I developed and published for iOS, and I struggle to make in-app puchasing work. Here is timeline.
January 21 - I successfully published app to App Store on Sunday, January 21. The app is "Tennis Umpire App", written in Xamarin. I used component https://github.com/jamesmontemagno/InAppBillingPlugin so support purchasing. There is Android version with the same code where in-app purchasing works. This is just port to iOS.
January 22 - Discovered that In-App purchase doesn't work. No popup for the user, in the logs I see just "General Error". Tried on different devices, different accounts (on my friends phones). Then I realized that my contract for payed apps wasn't finished in iTunes connect, so I finished the contract. Tried again and it didn't help.
Created new sandbox user to try in development version of the app, and it worked!
January 23 - I found another post that it may take 24-48 hours to get things through, so I waited. Checked it from time to time - didn't work. In monitoring tools I can see that other people tried with same error.
January 25 - at this point 48 hours passed since I completed the contract. But it still doesn't work.
Any ideas in how to troubleshoot it further are appreciated.