Block PO addresses.
Ship seamlessly.
Ultimate PO Box Blocker for Shopify saves you time and costs by automatically protecting your business from failed deliveries, logistical hiccups, and fraud.

Why your Shopify business should be blocking PO Boxes
The majority of major shipping carriers like FedEx, UPS and DHL do not deliver to PO Boxes. Customers with PO boxes won’t be very happy to purchase your product and never receive it.
If a product is mistakenly sent to a PO Box, It’s the merchant’s responsibility to cover re-shipping to an address that carriers can access.
Since PO boxes are untraceable, they’re far more likely to be used in fraudulent activities that you don’t want your business associated with.
No PO addresses, no stress.

Save time.
Ultimate PO Box Blocker uses auto-block software. Simply install from the Shopify App Store to spare yourself from the stress of tracking down lost and rerouted packages.

Save money.
With Ultimate PO Box Blocker, you’ll never again have to pay to re-send or reroute a package mistakenly delivered to a location not supported by carriers.

Protect your brand.
Blocking PO boxes reduces the chance of fraudulent transactions from identity theft, and offers your customers a better sense of security and confidence in your business.
Any e-commerce business owner knows how crucial it is to have well-managed shipping logistics.
We designed the Ultimate PO Box Blocker for Shopify to save you time, costs, and logistical headaches.
It’s an essential tool for any merchant looking to simplify their operations and create a more reliable experience for their customers.
Whether you’re a well established e-commerce brand or just getting started, the Ultimate PO Box Blocker is exactly what you need to take your shipping management to the next level.

Set up in seconds.
1. Install the Ultimate PO Box Blocker on Shopify from the app store.
2. Once installed, turn on the PO Box blocker.
3. Enjoy seamless shipping.
It's that simple, just click the button below to get started or read further instructions here.
1. Will Ultimate PO Box Blocker affect my international shipments?
Ultimate PO Box Blocker is programmed only to block PO boxes, not international addresses. That said, if your customer from another country wants to receive their package to a PO Box they will instead have to enter a home or business address.
2. Will the Ultimate PO Box Blocker slow down my checkout process?
No, the Ultimate PO Box Blocker is automated to work instantly. You will experience no delays during the checkout process - just a streamlined experience.
3. Can I install the Ultimate PO Box Blocker on multiple Shopify stores?
Yes! The installation is not limited to one store. If you have multiple ecommerce stores live on Shopify, each of them can benefit from blocking PO addresses.
4. Will I lose customers from blocking PO addresses?
It is very unlikely that you will lose customers by blocking PO addresses. If anything, you will be enhancing your customer experience for everyone involved.