What prevents me to create an Google Play in-app product?

Question

I have at "In-app products" of Google Play Console:

To add in-app products, you need to add the BILLING permission to your APK

I uploaded a bundle for both internal and closed testing and they were reviewed. I do have BILLING permission. What prevents me to create an in-app product?

Answer 1

I by mistake wrote android.permission.BILLING instead of correct com.android.vending.BILLING.