Some customers like to pay ahead to make sure their account is always paid up. With the v1 customer portal, you were able to make a payment whether you had a balance due or not.
This looks to be missing from the v2 customer portal and you can only make payments now if there is a due balance instead.
This basically brings up the payments page allowing them to still make a payment, but it's missing from the main billing page where customers can find it unless they owe a balance.
Some customers like to pay ahead to make sure their account is always paid up. With the v1 customer portal, you were able to make a payment whether you had a balance due or not.
This looks to be missing from the v2 customer portal and you can only make payments now if there is a due balance instead.
One workaround I found for this is simply making the url to be: https://portal.example.com/portal/billing/payment
This basically brings up the payments page allowing them to still make a payment, but it's missing from the main billing page where customers can find it unless they owe a balance.