Does anyone know if it's possible to use the same Coupon Code for multiple price rules. I want to give 10% off Category A and 7% off Category B, if they have any of the qualifying products in their cart.
Currently Magento throws the "Coupon with the same code already exists." but i read that you can disable this by removing the index and updating a core file, but i'm not sure what changes need to be made to the core file.
I'm referring to this comment:
https://magento.stackexchange.com/a/29360/15768
Grateful for any advice here. Thanks.
Best Answer
Mage_SalesRule_Model_Resource_Coupon
Remove the addUniqueField call. Don't modify the core file, override it in a custom module.
You'll also need to modify the table salesrule_coupon
Again, do this in a custom module as opposed to a direct sql call.