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Popular articles
- Warn vs Block: what Address Verifier stops, and where
Every rule runs in one of two modes. Block stops the address at checkout. Warn lets the sale finish and asks the buyer to fix it right after paying. Here's how to choose.
- Getting started: setup after install
Address Verifier ships with working defaults. Three steps stand between install and your first caught address: set your rules, then add the block to your thank-you and order status pages.
- What your buyer sees on the thank-you page
Most buyers see nothing at all. When an address needs attention, they get one card with the fix ready to apply. Here's every state, with screenshots.
- How the first 100 free orders work
Your first 100 orders get full verification free, from install, no credit card. The counter is lifetime, not monthly. At 100 you land on the Free plan — rules keep enforcing, only verification stops.
- Why didn't it catch this address?
A bad address got through and you want to know why. Six explanations cover nearly every case, in rough order of likelihood, with the fix for each.
Browse by topic
Install, test with a bad address, and pick a plan.
4 articles
What your buyer seesCheckout, the thank-you page, and express checkout.
4 articles
Validation rulesWhat each rule catches and how to set it up.
9 articles
Orders & fulfillmentOrder tags, Shopify Flow, and what happens after a flag.
3 articles
Billing & plansFree orders, what counts as a charge, switching plans.
3 articles
TroubleshootingWhen something didn't behave the way you expected.
3 articles
Data & privacyWhat we store, what we don't, and GDPR.
2 articles