Articles on: [Shopify Platform] Blockify - Fraud IP Blocker

Integration with Shopify Flow x Blockify

Overview

Shopify Flow is Shopify's free automation app: it does a job for you each time something happens in your store. With Blockify, it can act after Blockify scores, flags or cancels an order: tag the order, hold fulfilment, alert your team or block the visitor who placed it. In Flow, a trigger is the event that starts a workflow, a condition is a check such as "order total above $500", and an action is the job Flow then does. Blockify adds three triggers and two actions to Flow. Turn the integration on in Integrations > Shopify Flow.

Requirement

Fraud Filters must be on: Blockify triggers only start for orders that have a risk score. Set Cancel order automatically or Flag order on the risk levels you want Flow to react to.

Step 1: Enable Shopify Flow in Blockify

In the Blockify admin, open Integrations and click Set up on the Shopify Flow card.

If Shopify Flow is not installed on your store yet, click Install and add it from the Shopify App Store.

Click Enable so Blockify starts telling Shopify Flow when something happens to an order.

Important: Blockify tells Flow nothing until you click Enable. Templates you install before that stay installed but never run.

Step 2: Set up your flow

From your Shopify admin, open the Shopify Flow app and click Create workflow.

Choose a trigger, then add conditions and actions. You find the Blockify triggers and actions under the Blockify app name.

Click Turn on workflow.

Available triggers and actions

A Blockify trigger starts a workflow when something happens to an order in Blockify; a Blockify action is a job Blockify does inside any workflow.

Triggers

Trigger	Starts	Gives Flow
Risk Analysis Completed	For every new order, once it has a risk score	Order + risk score
Order Flagged for Review	When an order falls in a risk level whose action is Flag order	Order + risk level tag
Order Blocked	After Blockify cancels an order in a risk level whose action is Cancel order automatically	Order

Risk Analysis Completed also gives you a Blockify condition, riskScore: how risky the order is, from 0 to 1. You can use it together with any other Flow condition (for example riskScore above 0.5).

Actions

Action	What it does
Block this visitor	Adds the IP address the order came from to your Blockify Blacklist, so the visitor is stopped at your store before they can order again
Allowlist this visitor	Adds the IP address the order came from to your Blockify Whitelist, so block rules never stop this visitor. Use it to undo a wrong block

Both actions also work in workflows started by Shopify's own triggers, such as Order created, Order paid, Order fulfilled or Refund created.

Important: both actions work by IP address, not by customer account. A visitor who switches to another internet connection can come back, and blocking an address shared by an office or a mobile network blocks everyone using it.

Ready-made templates

Shopify Flow has 25 ready-made Blockify templates (workflows you only need to fill in). The three most common (Hold flagged orders for review, Alert my team about risky orders and Cancel only high-value high-risk orders) also appear on the Integrations > Shopify Flow page under Ready-made templates with an Add to Flow button. Until you click Enable (Step 1), the Add to Flow buttons are greyed out and each card reads "Enable Flow events above to use this template."

How to install a template

From your Shopify admin, go to Apps > Flow > Templates and filter the list by Blockify (or click Add to Flow on a card in Blockify).
Open the template and read its Setup note.
Fill in every blank field the note mentions, then click Turn on workflow.

Important: every template comes with its key fields empty: an order total, item quantity, country, discount code, order tag, or the web address Flow sends the order to (webhook URL). If you turn it on with those blank, it catches far more orders than you want: Cancel and refund orders flagged in a specific risk tier cancels every flagged order if the risk level tag is empty, and Block a buyer after you refund a suspect order blocks every customer you refund.

Tag and record

Template	What it does	Trigger
Tag every order with its Blockify risk level	Tags each order high, medium or low risk	Risk Analysis Completed
Tag customers by their Blockify risk band	Tags the customer as well as the order, so you can group customers in Shopify by risk	Risk Analysis Completed
Tag and notify your team when Blockify cancels a blocked order	Tags the cancelled order and emails your team	Order Blocked
Add a customer to a watchlist when their order is blocked	Tags the customer `blockify_watchlist` for your own review	Order Blocked

Alert and integrate

Template	What it does	Trigger
Alert my team about risky orders	Sends a high-risk order to Slack, SMS or any web address you choose	Risk Analysis Completed
Alert your team when Blockify blocks a high-value order	Sends a message to another app (webhook) and an email when a cancelled order was above a value you set	Order Blocked
Send flagged orders to your review system	Sends the details of every flagged order, including the risk level name, to a web address you choose	Order Flagged for Review

Hold for review

Template	What it does	Trigger
Hold flagged orders for review	Holds fulfilment on every order Blockify flags	Order Flagged for Review
Hold orders where the billing and shipping addresses don't match	Holds fulfilment on an address mismatch and emails you both addresses	Risk Analysis Completed
Hold fulfillment for high-risk orders shipping to selected countries	Holds orders to a country you choose that have a risk score above 0.5	Risk Analysis Completed
Hold large orders from first-time customers	Holds a customer's very first order when it is above a value you set	Risk Analysis Completed
Hold unusually large quantity orders for review	Holds orders above an item count you set that also have a risk score above 0.3	Risk Analysis Completed
Hold orders paid entirely with gift cards	Holds gift-card-only orders that also have a risk score above 0.3	Risk Analysis Completed
Hold fulfilment when the same customer is flagged twice	The first flag notes the customer, the second flag holds the order	Order Flagged for Review

Release, cancel and refund

Template	What it does	Trigger
Release fulfilment holds on low-risk orders	Lifts the hold when an order's risk score is 0.3 or under	Risk Analysis Completed
Cancel only high-value high-risk orders	Cancels high-risk orders only above a value you set	Risk Analysis Completed
Cancel and refund orders flagged in a specific risk tier	Cancels, refunds and restocks, for one risk level you name only	Order Flagged for Review

Block automatically

Template	What it does	Trigger
Block the visitor after Blockify cancels their order	Blocks the IP address, first-time buyers only	Order Blocked
Block repeat offenders after a second blocked order	The first cancelled order notes the customer, the second blocks the IP address	Order Blocked
Block a buyer after you refund a suspect order	Blocks the IP address after you refund an order with a tag you name	Refund created
Block repeat abuse of a discount code	The first use notes the customer, the second use blocks the IP address	Order created
Block a watchlisted customer at their next order	Blocks anyone already tagged `blockify_watchlist`	Order created

Let trusted customers in automatically

Template	What it does	Trigger
Allowlist a customer after their second clean paid order	Adds the IP address to your Whitelist once a customer has paid for two orders	Order paid
Allowlist a returning customer after Blockify cancels their order	Adds a repeat buyer whose order Blockify cancelled to your Whitelist, and emails you	Order Blocked
Trust a customer once you fulfil an order Blockify held	Adds the IP address to your Whitelist after you ship an order Blockify had held	Order fulfilled

Before a template will run

Templates that start with Risk Analysis Completed, Order Flagged for Review or Order Blocked only run after you click Enable in Blockify (Step 1).
Order Flagged for Review starts only when a risk level's action is Flag order; Order Blocked only when it is Cancel order automatically.
Templates that cancel orders themselves (for example Cancel only high-value high-risk orders) need Blockify's own Cancel order automatically turned off for that risk level.
The five templates on Order created, Order paid, Order fulfilled and Refund created use Shopify's own triggers and run even if you have not clicked Enable; they only need Blockify installed.
Templates that tag a customer or count their orders skip guest orders (orders placed without a customer account).
Release fulfilment holds on low-risk orders only lifts holds that Shopify Flow itself placed.

Example workflows

1. Cancel high-risk orders and flag medium-risk orders for review

Trigger: Risk Analysis Completed. Split the workflow by riskScore: cancel high-risk orders, tag medium-risk orders for your team to review, tag low-risk orders as safe to fulfil.

2. Tag fraudulent customers and alert your team

Trigger: Order Blocked. Add a fraud-risk tag to the customer and send an email or Slack message to your fraud team.

3. Create a support task for orders your team needs to check

Trigger: Order Flagged for Review. Create a ticket in a helpdesk such as Gorgias, or email your team the customer details, order value and a link to the order.

Who can use this feature?

Available on the Enterprise and Shopify Plus plans.

FAQs

My workflow never runs. What should I check?

Check that you clicked Enable in Integrations > Shopify Flow, that the risk level your trigger depends on has the matching action in Fraud Filters (Flag order or Cancel order automatically), and that the workflow is turned on in Shopify Flow.

Can I use Blockify actions without clicking Enable?

Yes. Block this visitor and Allowlist this visitor work in any workflow, including ones started by Shopify triggers. Only the three Blockify triggers need Enable turned on.

Where do I see visitors a workflow blocked?

In the visitor log under Analytics, filter by Block reason and pick the dates. Rules do not show their own block count.

Can I edit a ready-made template after installing it?

Yes. A template becomes an ordinary workflow in Shopify Flow; change any trigger, condition or action, then turn it on again.

Updated on: 16/10/2026

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