[BoorishBears]

Recently my company (well known company/brand) someone created a coupon code that made your total 0 dollars.

Apparently around 400 orders had been made using it before it was found, which on the scale of things isn't as bad as it could have been

From what I followed it didn't seem malicious, it was a broken attempt to implement a referral bonus

[detaro]

On what level do those happen? Actually tweaking code, or some higher-level interface? (I wonder why this is even possible to do)

[BoorishBears]

CMS type interface

Technically it didn't make any order free actually... just 200$ cheaper and you could use it as many times as you liked.

They made a discount with the correct amount, but it was supposed to require a referral from a much bigger ticket item and they missed that