Why Your Shopify Checkout Extension Suddenly Won’t Deploy
Why Shopify can block an app deployment because another checkout UI extension is still on an old API version, and how to upgrade safely.
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Shopify answers, setup guides, troubleshooting checklists, release explainers, and common setup misunderstandings.
Shopify Checkout Validation Functions: Blocking Checkout With Rules the Theme Can’t Enforce
How Shopify Cart and Checkout Validation Functions enforce purchase rules server-side when storefront theme code is not enough.
Checkout UI Extension or Checkout Validation Function?
A practical Shopify decision guide for choosing between Checkout UI Extensions and Cart and Checkout Validation Functions.
How to Stop Shopify Sale Pricing From Double-Discounting Recharge Subscriptions
How to keep one-time Shopify sale pricing from also discounting Recharge subscription lines by separating merchandise eligibility from purchase type.
Why Won’t Two Shopify Discounts Combine at Checkout?
Shopify discounts only stack when both discounts allow the relevant combination and their discount classes, products, sales channel, and eligibility rules support it.
Why Does a Shopify Draft Order Email Open Checkout in the Wrong Language?
A Shopify draft-order invoice can be translated correctly while its checkout opens in the store’s default language. Verify the market and use a localized checkout link when needed.
Shopify Shipping Rates Not Showing at Checkout?
A practical troubleshooting guide for Shopify shipping rates that do not appear at checkout, covering profiles, zones, product assignment, markets, weights, locations, and carrier app failures.
Shopify Functions Runs but Nothing Happens
How to troubleshoot a Shopify Function that runs without errors but does not change checkout behavior.
What Breaks When You Upgrade to Checkout Extensibility?
A practical checklist of tracking, script, and page customizations that can break when moving to Shopify Checkout Extensibility.
Google Ads Tracking Broke After Checkout Extensibility
Why Google Ads, GTM, and conversion tracking can break after Shopify Checkout Extensibility, and what to check first.