How to simplify the purchase - without registration, in one click?

Question

Online shopping

I would like to make it possible to purchase without registration. What could be the difficulties in doing so? Including in terms of working with the payment service. What should be taken into account? As far as I understand, it is possible, for example, to unify the user by mail. Maybe there are some examples and advice, I would be grateful.

Answer 1

A 1-click purchase is a common application form, after filling out which the manager contacts and asks all the same questions as during registration, only writes it down on the phone.
Without registration, it will be difficult now, especially given the modern realities that we are required to comply with 54-FZ, and there a minimum of email and full name of the payer is required.
This is no longer a 1-click purchase, but a regular registration. Let it be simplified.

Answer 2

You forgot about payment details, contact details and so on necessary to make a purchase.
The simplest and most elegant way to simplify the purchase process: a callback script that fixes the page the user is on