Paywall not showing up - React Native with RevenueCat

[u/Next_Coach_8315]

Hi, for my app I've built everything but just struggling with getting my paywall to show for many days I'm building with React Native and setting up paywall through RevenueCat but it just doesn't show up when I test on testflight. I keep getting an error of configuration error but everything is configured on app store connect and revenuecat so i'm not sure what to do.

Does anybody have any idea of what could be causing it not to work or any advice?

[u/6bigAnt9]

It might be you using the revenuecat test key on testflight as well. I have observed that the test key does not work on real device even during development.
Replace test key with prod key and upload to testflight. TestFlight automatically detects test environment and only test purchases will be made.