Address Validator
Validates shipping addresses at checkout to prevent carrier surcharges and failed deliveries
Official site →Address Validator checks shipping addresses at Shopify checkout and flags issues before the label prints. It catches typos, missing apartment numbers, PO boxes, military addresses, and invalid ZIPs that would otherwise trigger carrier surcharges or return-to-sender. Best fit for brands shipping 2k-20k orders/month where address errors are quietly eating margin.
What Address Validator does for Shopify brands
- Fixes bad addresses at checkout, before label prints, so UPS & FedEx correction fees never apply
- Blocks PO boxes, military addresses & invalid ZIPs that come back as return-to-sender
- Avoids second outbound shipment or refund on items already shipped
