I've been trying to set up a subscription for the last while and been running into an error on receipt validation. We're using playfab with Unity for a live game.
For Android I get "Google ServiceAccountInvalid" error code 1332. For IOS I get "iTunes Sandbox validation result 21003 (AuthenticationFailed) from https://sandbox.itunes.apple.com/verifyRecipt"
Any ideas what I might be missing? On IOS I'm testing in Sandbox. Thank you.