Articles on: Shopify Apps

Checkout Blocking Features – How It Works

Introduction:

Blocky - Simple Country Blocker allows you to prevent unwanted orders directly at the checkout page. Using its Checkout Blocking features, you can stop customers from completing their purchase if their email, phone number, full name, or address matches blocked information.


This guide explains each blocker, how it works, and what happens at checkout so you can effectively manage your store’s security.


1. Customer Email Blocker

What It Does:

Blocks customers from completing checkout if they use a specific email address.

How It Works:

  1. Go to the Blocky Dashboard.
  2. Open Customer Email Blocker.
  3. Turn the feature ON.
  4. Add the email address you want to block (example: example@email.com)
  5. Save your settings.

What Happens at Checkout:

  • If a customer enters a blocked email, they will be prevented from placing the order.
  • The checkout cannot be completed, and the customer will see a block on the checkout page.

2. Customer Phone Blocker

What It Does:

Prevents checkout completion when a blocked phone number is used.

How It Works:

  1. Go to Customer Phone Blocker.
  2. Turn the feature ON.
  3. Add the phone number(s) you want to block.
  4. Save your settings.

What Happens at Checkout:

  • If a customer enters a blocked phone number, they will be unable to complete the purchase.
  • The block appears immediately on the checkout page.

3. Customer Full Name Blocker

What It Does:

Blocks customers from checking out using a specific full name.

How It Works:

  1. Open Customer Full Name Blocker.
  2. Enable the feature.
  3. Add the full name you want to block.
  4. Save your settings.

What Happens at Checkout:

  • If the customer’s full name matches a blocked name, checkout is stopped immediately.
  • The customer sees a block on the checkout page.

4. Customer Address Blocker

What It Does:

Stops customers from placing orders if they use a blocked shipping address.

How It Works:

  1. Go to Customer Address Blocker.
  2. Turn the feature ON.
  3. Add the address you want to block.
  4. Save the settings.

What Happens at Checkout:

  • If the shipping address matches a blocked address, the customer cannot complete checkout.
  • The customer will be blocked immediately on the checkout page.

How Checkout Blocking Protects Your Store:

Using these blockers helps you:

  • Prevent fraudulent orders
  • Block chargeback customers
  • Stop repeat problem buyers
  • Avoid fake or spam orders
  • Protect your business from high-risk customers

All blocking happens instantly at checkout, before the order is successfully placed.


Important Notes:

  • Ensure each blocker is turned ON.
  • Double-check spelling when adding emails, names, or addresses.
  • You can update or remove blocked information anytime.
  • Changes take effect immediately after saving.


If you need help setting up or configuring the IP Blocker, our support team is ready to assist.


Updated on: 16/03/2026