How to show smart payment buttons on review page?

The same happens to me using opigno site with drupal commerce 8.x-2.27
I went trought all the documentation, but maybe we are missing some configurations?

I am seeing this exact same issue, and it is also reported here: https://www.drupal.org/project/commerce_paypal/issues/3380733 💬 Paypal smart buttons showing on cart page not review or payment page Active

4 months and no response on that other issue, and 6 on this one.

I have been configuring and working with this module for about 3 days now to try and get it to work and am now finding both these issues.

I downgraded the module just now to version 1.0 and the smart buttons do not show on the cart on that version either.

This is a critical issue, if the checkout flow does not integrate paypal, then what's the point of the module, that is it's usecase.

I'll keep digging as I need it to work, but I have spent days on this already.

Well, because this is a support request, not a bug report with reproducible steps... There's no such thing as a "critical" support request... I replied to you on the other issue you linked, there's no point in multiplying issues, this isn't going to give you a faster answer.
I think you're misunderstanding how this module works.

The "PayPal checkout" flow is for the "shortcut" flow where payment is initiated from the cart page.
If you want the smart payment buttons to appear on the review step, then you have to make sure the payment information pane is placed in a step prior to the review so the paypal gateway is set on the order... That's as simple as that.

Closing this as a duplicate of 💬 Paypal smart buttons showing on cart page not review or payment page Active .