You can find the Buy Now button on your product page. When your customer clicks the Buy Now button, they will not be able to choose a pickup/delivery/shipping date and time—the button will lead them straight to checkout.
Disable the Buy Now button to avoid bypassing our widget on the cart page.
Make sure to disable the Buy Now button on all the pages it may appear.
Featured product
Product quick view
Read more about this in Shopify dynamic checkout buttons article.
Disable the Buy Now button
Within Shopify admin, click Online Store, and then Themes.
Click Customize.
Click Home page in the dropdown menu and select Products.
Click Default product.
Click Product information in the left sidebar.
Click Buy buttons.
Uncheck Show dynamic checkout button in the right sidebar. Please note that some themes call this setting differently—accelerated checkout, dynamic checkout, buy now.
The Buy It Now button should disappear when you have unchecked the correct setting.
Click Save.
Your product page should now have no Buy Now button.