2 separate customers order same quantity=1 item, both orders are processed. results in negative quantity

Hi everyone,

My client has a very busy opencart site. If we have, for example, a qty=8 item and three different customers put 5 each in their carts and checkout at around the same time, then suddenly we have a -7 quantity and the site owner has to email one of the customers and apologize, cancel the order and do a refund.

There are no checks along the way in opencart to ensure this doesn't happen.

(Here's the bug described perfectly on github: https://github.com/opencart/opencart/issues/4811

Is there a fix for this bug? Plugin??

thanks,

Takayuki

takayuki wrote: ↑

Wed Nov 25, 2020 10:35 am

Is there a fix for this bug? Plugin??

Have a search in the marketplace but if not then you could pay a dev like us to change how it works.

You'd need to make it so items disappear from stock when added to cart which does mean a competitor would be able to create carts that use up stock. It seems a fairly hard problem to solve on all ecommerce sites.