Vayu Checkout Blocker: setup guide
Works automatically at checkout. No theme setup is needed.
1. Install and open the app
- Install the app from the Shopify App Store and approve the permissions.
- Open it from Apps in your Shopify admin.
2. Add rules
- On Rules, click Add rule and choose what to block: an email address, an email domain, a country or state, and on Pro a ZIP/postcode, customer tag, phone number, the disposable-email list or a maximum order total for new customers.
- Pause or delete a rule at any time.
- Edit the message blocked buyers see at checkout.
3. Test
- On Test a buyer, enter an email, country, ZIP or tag to see which rule would block it.
- Or add the example rule (domain example.com) and check out with test@example.com: checkout shows your message and cannot be completed.
Rules run at checkout only; shoppers can still browse and fill their cart.