I've just tested this and it doesn't work.
TGC can you please look to see if it's possible to activate in app purchases with a redeem code typed in the Google Play store? It might be something that works already but needs to be programmed a particular way when the AppGameKit app gains focus.
As mentioned above permanent in app purchases with a redeem code work fine so ad removal type ones work, it's the consumable ones that aren't working i.e. crystals, keys, and coins etc.
The in app purchases themselves work in the app when purchased in the app and the promo codes work in the store as it shows what the code is for but once you type it in and Google gives you the option to open the app, the app opens but the consumable in app isn't triggered/registered by the AppGameKit app.
