Address Validator Plus

Shopify does not have a built in feature to exclude PO Boxes. If you only ship UPS this is a huge issue! I searched high and low on the interwebs looking for a solution and there was only 1: Address Validator. I installed it and needed some further customization so put in a feature request. This normally would have taken weeks, but somehow their support team resolved my issue within hours! We are now able to alert customers who checkout with PO Boxes and request a street address on the order confirmation page. The customer support responsiveness made this a pleasure to troubleshoot. Thank you!

Thanks for this awesome app just in time for Christmas! I'm tired of my packages getting lost and customers asking for refunds because they didn't receive their shipment. Finally, I can be confident that every package will be delivered!

the best part for us was super responsive support from them. other wise it did exactly what is said it would do. was able to set colors to my liking.

Address Validator Plus was easy to install and easy to customize. I had a quick question regarding our checkout, and Customer Support was there to quickly answer my issue. Highly recommend

5 Stars to the Address Validator Team, they try to help as much as he can. The problem that i got is caused of shopify and not from this tool. So 5 Stars to Address Validator Team - 5 Stars to this app and 1 Star in the case for shopify.

Well built, easy to install, app that is going to save us money on address errors charges through Fedex. The support is A+.

The app does what it's designed to do. Only if there are several mistakes in an address at the same time (especially fields too long AND a missing street number at the same time), then it's only correcting one of them (in this case the too long fields). But that shouldn't happen too often, it looks like this app will reduce our manual corrections by 99% or so, that should be fine.
They have the most amazing and fast customer service btw. They pushed an update for a problem with suppression of the address_2-field for me within minutes.

This app is an amazing idea! I tried it shortly, and was happy with the results. It integrates primarily with USPS whereas I need firm address validation for Canada Post - give it a try :-)