This article will go over how to enable both Public Order Forms and the Guest Checkout features to allow anyone visiting a site to order from it without requiring an account and/or signing in.
To start, the site will need at least one order form that is ready to be public-facing.
Enabling Guest Checkout:
Go to the Admin Menu > Shopping Cart > Checkout Options > Find Guest Checkout > Checkmark to Enable > Click Save at the bottom of the page.
Enabling the Public Order Forms:
Go to the Admin Menu > Users & Groups > Change the Group from Everyone to Public Order Forms > Select the Order Form(s) > Click Assign at the top > Select On from the drop-down > Click Assign.
After completing these steps, sign out and review the order page to ensure the order forms are available.