Guides
Discount codes that don't work, explained
Everything we've learned building a tool that watches discount codes fail at checkout — written up so you can fix yours.
Recovery
SUMMER2O Is Not SUMMER20: How Discount Code Typos Quietly Kill Shopify Sales
Customers mistype discount codes — O for 0, missing letters, stray spaces — then abandon. How typos happen, how to name codes that resist them, and how to recover the sales.
July 6, 2026
Troubleshooting
Shopify Discount Code Not Working? The 9 Causes and How to Fix Each One
A practical checklist for when a Shopify discount code won’t apply: expiry, usage limits, combinations, eligibility, typos — and the failures you never hear about.
July 6, 2026
Combinations
Shopify Discount Combinations Not Working? How Stacking Rules Actually Work
Why a perfectly valid Shopify discount code gets rejected when another discount is active: combination classes, automatic discounts, and a testing recipe that catches conflicts.
July 6, 2026
Analytics
How to Track Failed Discount Codes in Shopify (Native Reports Won’t Show You)
Shopify only reports discount codes that succeed. Four ways to see the codes customers typed that failed at checkout — from support tickets to Web Pixels.
July 6, 2026