How do I add a script to prevent combining Shopify discounts with other discount campaign?

[Choiiii]

How to disable all discount codes on Shopify by product tag using script？

I've adjusted the price directly to the compare-at price, but I don't want the buyer to use another discount code again as this will result in duplicating the discount, how do I do this?

How do I add a script to prevent this?

In which location do I add the script?

I am using the basic Shopify.

Thank you!

[GhostApps1]

Hi,

In case there are any Shopify Plus stores that come across this post, Discount Guardian can block discount codes based on rules such as the shipping address, specific product variants and if a gift card is being used.