We have a coupon code in place to offer a 100% discount on a sample product. The code has recently stopped working. Are there any known issues with coupon codes after security patches in Magento 1.7 I have read that there was a known bug with 1.9
Thank you in advance
Are you sure that there is no limit in the coupon configuration?
Below you can find a screenshot of the fields related to the limits in the coupon codes ("uses per coupon" and "uses per customer"):
Happy new year!
I checked the coupon uses and it wasn't that. I've removed the coupon, added it again, refreshed the cache etc and it seems to be working at the moment.
Thank you for the suggestion