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AddressFence: PO Box Blocker
- by momiji-shop
- Free plan available
- by momiji-shop
- Free plan available
Block PO boxes and lockers on billing addresses, plus require street numbers—covering the checkout validation gaps Shopify's native rules miss.
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About the AddressFence: PO Box Blocker
AddressFence blocks PO boxes and lockers on billing addresses — something Shopify's built-in checkout rules can't do. It also requires street numbers in address lines, a feature from the old Address Blocker that wasn't migrated.
The free plan covers PO box blocking and street-number checks for billing addresses. Upgrade to Pro or Plus for custom messages, region blocking, ZIP pattern filters, and CSV export.
Test any rule in the simulator before going live, with one-click rollback if needed. Perfect for stores that need stricter address validation beyond what native checkout rules offer.
Launched: June 22, 2026
Key features
- Billing-address rules - built-in checkout rules cannot target billing at all.
- Require a street number - the Address Blocker rule that was not migrated.
- Test any address in the simulator before publishing, with one-click rollback.
Integrations with:
- Checkout
Category:
Pricing of AddressFence: PO Box Blocker
Free
Free
- Billing PO-box + street-number.
Pro
$9.99 / month
- Free + messages + region rules.
Plus
$19.99 / month
- Pro + 2k ZIP rules + CSV import.
