Unavailable Purchasing in Facebook Gameroom/WebGl

Hello,

I'm having problems with my iaps working in facebook gameroom and WebGl. I'm getting the following Errors:
"Purchasing Failed to initialize: PurchasingUnavailable"
"Purchase failed because Purchasing was not initialized"

I've configured the Valid OAuth Redirect URIs to my facebook game page https://apps.facebook.com/XXXXXXXXX , but the facebook review process isn't done yet.

I've also configured Payments Lite, added 1 IAP for now.

I'm also using unity codeless IAP which works perfectly on Android and IOS.

Could be a login problem or am i missing a setting from facebook developer Page?

Thanks!

 

I fixed it by disabling auto initialize from Codeless IAP CATALOG.