Cart page
Discount Ninja, by default, hides the following buttons on the cart page when promotions are active to ensure the checkout button works as expected:
"Buy with Amazon/Apple Pay/PayPal/..." buttons. These buttons initiate an express checkout using a specific payment option. This checkout process does not support advanced discounts.
IMPORTANT: Discount Ninja is fully compatible with Amazon/Apple Pay/PayPal/... payment options when they are used on the checkout.
This article provides more information.
Product page
Discount Ninja, by default, overrides the following buttons on the product page when promotions are active to ensure they produce a discounted checkout when necessary:
"Buy Now" buttons. These buttons initiate an immediate checkout of the product on the product page (usually via a specific payment option).
This article provides more information.