Ultimate PO Box Blocker

Ultimate PO Box Blocker

Pricing
From $8.99/month. Free trial available.
Highlights
Use directly in Shopify admin
Rating
5.0 (5)

Stop PO Box orders at checkout for successful deliveries and lower shipping cost. 1-click setup.

If you're a merchant tired of dealing with lost packages, failed deliveries, or the extra costs associated with reshipping, then Ultimate PO Box Blocker is for you. Whether you're a small business owner or run a large e-commerce operation, our app is designed to make your shipping process more efficient and reliable. The app needs no manual setup for seamless integration but offers advanced customization options. Take control of your shipping process today.

If you're a merchant tired of dealing with lost packages, failed deliveries, or the extra costs associated with reshipping, then Ultimate PO Box Blocker is for you. Whether you're a small business owner or run a large e-commerce operation, our app is designed to make your shipping process more efficient and reliable. The app needs no manual setup for seamless integration but offers advanced customization options. Take control of your shipping process today. more
  • Auto-block PO Boxes carriers like FedEx, UPS, DHL can't deliver to.
  • Eliminate time, effort, cost resolving address issues after purchase.
  • Real-time validation flags undeliverable addresses during checkout.
  • Simple installation with seamless integration—no setup needed.
  • Advanced options to customize settings for specific shipping needs.
Highlights
Use directly in Shopify admin

Languages

English

Works with

Pricing

Pro Monthly Plan

$8.99 / month

  • Block PO Box orders in real-time
  • Setup in 1 click
  • Customize your PO Box message
  • Integrate Seamlessly with Shopify
  • Advanced Settings at your fingertips
  • Anytime Support

30-day free trial

Pro Yearly Plan

$96.99 / year

  • Block PO Box orders in real-time
  • Setup in 1 click
  • Customize your PO Box message
  • Integrate Seamlessly with Shopify
  • Advanced Settings at your fingertips
  • Anytime Support
  • Save 10% by paying yearly

30-day free trial

All charges are billed in USD. Recurring and usage-based charges are billed every 30 days.

Reviews (5)

Overall rating
5
Counts per rating level
  • 100% of ratings are 5 stars
  • 0% of ratings are 4 stars
  • 0% of ratings are 3 stars
  • 0% of ratings are 2 stars
  • 0% of ratings are 1 stars
October 17, 2025

Works exactly how it is supposed to. Took 5 minutes to set up and. now we have this in all our client's stores. Makes sense to use.

Cinch Jeans
United States
29 days using the app
MSM TECHNOLOGIES replied October 25, 2025

Thank you for the detailed review! Happy to hear that everything is working smoothly for you guys.

December 5, 2024

Prompt customer service and great turn-around on a custom fix for us!

Roo & You
Canada
24 days using the app
MSM TECHNOLOGIES replied January 9, 2025

Thank you for letting us know about your issues. We're glad we could provide a solution!

February 25, 2024

Fast and very helpful customer service. App works as expected. Thank you!

Thistle and Spire
United States
About 3 hours using the app
MSM TECHNOLOGIES replied June 29, 2024

We appreciate your feedback!

Support

App support provided by MSM TECHNOLOGIES.

Developer

MSM TECHNOLOGIES

1915 rue Poupart, Montreal, QC, H2K3H1, CA

Launched

October 10, 2023

Data access

This app needs access to the following data to work on your store. Learn why in the developer's privacy policy .

View personal data:

Customers, store owner

  • Customers

    Name, email address, phone number, physical address, geolocation, IP address, browser and operating system

  • Store owner

    Name, email address, phone number, physical address

View and edit store data:

Products, orders, Shopify Functions

  • View products

    Products or collections

  • View orders

    Shipping information

  • Edit Shopify Functions

    Access for delivery customizations

  • Edit other data

    Locales or translations

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