Customers can register multiple times with the same email address

[30knees]

Hi,

A customer has been able to register three times with the same email address. I am not able to do so, so I don't understand how this happened.

The customer shows up three times in the backend under "Customers", with three different customer IDs.

Also, if relevant for the bug hunting, the customer was unable to finalise their purchase and got the error that delivery to their address was not possible (even though the country has a zone and a carrier):

There is 1 error There are no carriers that deliver to the address you selected. « Back The product selection cannot be delivered by the available carrier(s). Please amend your cart. Their address is also three times in the backend under Customers>Addresses (btw, I think it's a bit odd that the addresses don't show up when you click on the customer's details).

[lesley]

Are they registering or using guest accounts?

[30knees]

OK, that's it. :) I made the mistake of assuming all customers under customers are registered - this is different behaviour than my old shop. The customer is twice as a guest and once as a registered customer. So no bug after all.

[30knees]

What happens when a customer has two entries: one as a guest and one as a registered customer? Why is this even possible?

[The Pellet Guy]

2 hours ago, 30knees said:

What happens when a customer has two entries: one as a guest and one as a registered customer? Why is this even possible?

I have quite a few instances of this  but only seems to happen on my migrated sites  I was looking for a way to combine customers  so it would tidy things up

[30knees]

Yes, I'd also like to tidy things up. I also wonder why a customer can place an order as a guest with the same email address they also have a registered account with.

[veganline]

On the other hand, people like me have asked for a relaxation of the rule - it was a bug fix a few months back. My customers come back after a year or two, if at all, and I don't want something that applied on the site way-back to trip-up their order process now. I want them to glide through the process without thought of registration, at least until they have paid!

[30knees]

True, good point. Sometimes they have trouble remembering the password or resetting it. 

[the.rampage.rado]

The guest account can be converted to registered user but it's not needed. If the user does not register an account with you he/she may not order from you again. If they do they can reenter all their data if the browser does not autopopulate it for them (rarely) so no need to turn off this feature imo.