In our shop there are records in the table
sales_flat_quote where the
NULL. If I understand correctly this is due to a customer not being logged in.
The catch is that our shop has forced login: without loggin in a customer can't enter the shop.
This issue causes several problems:
- Sometimes customers receive an error when they try to place an order.
- Sometimes when one account logs in on two different machines, two different shopping carts exist under the same account.
Does anybody have any idea as to why sometimes the
customer_id is not recorded?
Magento version 184.108.40.206
For forcing the login we use a module. When the customer tries to place the order they One Step Checkout keeps loading and a red bar without text appears. The admin receives an email with "Payment Transaction Failed Reminder" without any more information.
Also, this problem occurs with 30-50 regular customers but not with others. This caused be to think the problem is client based, but all clients use different OS, browsers, etc.