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# Auto-tag and block high-risk customers at checkout

## Overview

Stop a customer who placed a risky order from ordering again. When Shopify rates an order as **High** risk, **Auto-tag and block high-risk customers at checkout** adds the tag `blockify-high-risk` to that customer in Shopify. From then on, the customer can't complete checkout on your store. It is a single checkbox under **Quick Setup** on the **Block Checkout** page.

## What you'll learn

* [Requirement](#2-requirement)
* [How to enable Auto-tag and block high-risk customers at checkout?](#2-how-to-enable-auto-tag-and-block-high-risk-customers-at-checkout)
* [How it works?](#2-how-it-works)
* [How to unblock a customer?](#2-how-to-unblock-a-customer)
* [Who can use this feature?](#2-who-can-use-this-feature)

## Requirement

| Your store must be on the **Enterprise** or **Shopify Plus** plan of Blockify, and Blockify needs permission to edit customers in Shopify. The app asks for it the first time you tick the box.

## How to enable Auto-tag and block high-risk customers at checkout?

### Step 1: Tick the checkbox

Go to **Block Checkout** and find the **Quick Setup** section at the top. Tick **Auto-tag and block high-risk customers at checkout**.

![](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/auto-tag-and-block-high-risk-c_1s33f09.png)

### Step 2: Grant permission

If a **Grant permission** window opens, click **Grant permission**. Shopify takes you to a screen where you approve the permission to edit customers, then brings you back to Blockify with the box ticked.

### Step 3: Save

Click **Save**. Blockify adds a rule to your **Block checkout fields** list: **Customer tag** contains any of: blockify-high-risk. This rule does the blocking, so keep it switched on.

![](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/auto-tag-and-block-high-risk-c_jwkht6.png)

## How it works?

* Blockify reads the risk level Shopify gives each order. Only orders rated **High** count; Medium and Low orders are left alone. You can't change this level.
* The customer of that order gets the `blockify-high-risk` tag in Shopify. A customer with several high-risk orders is tagged once. You can see the tag on the customer's page under **Customers** in your Shopify admin.

![](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/auto-tag-and-block-high-risk-c_hx2ufo.png)

* When a tagged customer tries to check out while signed in to their account, checkout stops and they see the **Error message** you set under **Quick Setup**.

![](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/auto-tag-and-block-high-risk-c_1689byy.png)

* It works on its own: you don't need to turn on **Fraud Filters** or any other protection. It covers orders Blockify receives after you tick the box; older orders aren't tagged.
* The high-risk order itself is not cancelled or changed. What happens to it depends on the actions you chose in **Fraud Filters**.

| Shopify can only check customer tags when the shopper is signed in to their customer account. A shopper who checks out as a guest isn't stopped by this protection. To block a specific email as well, add it in **Block checkout fields**. See [Block checkout by email, phone, name, address or customer tag](https://help.omegatheme.com/en/article/block-checkout-by-email-phone-name-address-or-customer-tag-ohvyq8/).

## How to unblock a customer?

If a real customer was tagged by mistake, open **Customers** in your Shopify admin, find the customer and remove the `blockify-high-risk` tag. They can check out again straight away, and Blockify won't tag them again for later orders.

To stop blocking everyone, untick the box and click **Save**. Blockify removes the **Customer tag** rule, so no tagged customer is blocked. The tags stay on the customers in Shopify, so if you tick the box again, they are blocked again.

## Who can use this feature?

Available on the **Enterprise** and **Shopify Plus** plans.

## FAQs

1. **Why wasn't a customer tagged after a high-risk order?**
The order wasn't rated High by Shopify, the order had no customer profile, the order came in before you ticked the box, or you removed the tag from this customer before.

2. **I deleted the Customer tag rule by accident. How do I get it back?**
Untick **Auto-tag and block high-risk customers at checkout**, click **Save**, then tick it again and click **Save**. The rule is added back.

3. **Does this block the customer from browsing my store?**
No. It only stops checkout. To block a visitor from your whole store, use **Auto-block visitors placing fraud orders** or add their IP in **Block & Re-director**.