OneStore Request for Review is Grayed Out

1 - I sent my game to OneStore using Unity Udp!
2 - I completed all the missing information on https://dev.onestore.co.kr/

But the Request For Review button is still Grayed Out!

6553975--742114--upload_2020-11-23_18-2-27.png

Has anyone managed to complete the process? What is missing?

Thanks

I found the problem!
You have to test all In-Apps on the Sandbox before requesting the review.

But my build is not working.
In-App on OneStore is failing with error :

11-24 09:01:53.819: E/UnityAds(15521): com.unity3d.services.store.StoreBilling.asInterface() (line:28) :: Billing service stub not found: com.android.vending.billing.IInAppBillingService$Stub: com.android.vending.billing.IInAppBillingService$Stub

And failing to Get Product info.

I’m updating everything to the most recent version and creating a new UDP build to check if it will work.

OneStore is definitely not working! I cannot make any In-App Purchase nor show any info.

I got some errors when trying to use it

11-24 14:48:40.325: E/UnityAds(23433): com.unity3d.services.store.StoreBilling.asInterface() (line:28) :: Billing service stub not found: com.android.vending.billing.IInAppBillingService$Stub: com.android.vending.billing.IInAppBillingService$Stub
11-24 14:49:21.613: E/Unity(23433): UnityEngine.Purchasing.CodelessIAPStoreListener:GetProduct(String)
11-24 14:51:53.708: E/Unity(3847): Purchase failed because Purchasing was not initialized correctly

Did you manage to test IAPs? Once downloaded and installed build for OneStore: on first run ,I get Purchasing initialization fails with AppNotKnown, on second run - it never completes.