Not connected
YQ Extension Public
Store · —
Open this app from Shopify admin → Apps so the store context is included. Without a
shop parameter, validation cannot be managed.
Block invalid shipping details at checkout. Turn the store-wide gate on or off, and configure PO Box, address, and recipient name limits separately.
Store
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Connection
Not connected
Validation gate
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How to use
- On Rules, complete authorization and click Enable validation to turn on the store-wide gate.
- Optionally enable Block PO Box, Limit address character count (separate Address / Apt caps), Limit combined address characters (both lines; off by default), and Limit recipient name characters (First + Last). Then click Save rules.
- Turning a length rule off removes this app’s custom check for that dimension; Shopify checkout native limits still apply. Multiple length rules can be on at once.
- At checkout, blocking follows your config. Customer messages follow the checkout language (currently en / de / fr; others fall back to English).
- Click Disable validation to turn off the store-wide gate (settings are kept and apply again when re-enabled).
After enabling, self-test: a normal street address should pass; PO Box 123 should fail when the PO Box rule is on; overlong Address / Apt, combined address, or First+Last should fail when the matching limit is on.
Pricing
This app is free. There are no charges and no off-platform billing.
Links
No separate admin login is required. Manage the app from Shopify admin.