Prevent bot purchases, fraudulent orders & unauthorized checkout (Checkout Lock – Shopify Plus)

Note: This feature is for Shopify Plus stores that have access to Checkout Lock inside B2B Lock (or a similar section name).

Goal Block suspicious or unauthorized checkouts using rules at the checkout level (not just at the catalog level).

When to use this recipe

• You get many fake or risky orders.

• You want only approved customers to complete checkout.

• You need extra safeguards for certain products, markets, or IP ranges.

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Step 0 – Before you start

• Confirm your store is on Shopify Plus.

• Make sure B2B Lock – Checkout lock is installed and visible in the app navigation.

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Step 1 – Create a checkout lock rule

1. In the app, navigate to Checkout locks (or similar menu).

2. Click Add checkout lock (or Add rule depending on UI).

3. Name the rule: Block unauthorized checkouts or Stop bot/fraud orders.

You’re now configuring checkout-level conditions, not just storefront visibility.

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Step 2 – Define conditions for blocking checkout

Examples of useful patterns:

A. Only tagged customers can checkout

• Condition: If the customer is not tagged with wholesale or approved → block checkout.

• Result: Only approved customers can complete orders.

B. Block specific products from checkout

• Condition: If the cart contains specific products/collections AND customer is not tagged appropriately → block checkout.

• Useful for restricted products or controlled items.

C. IP / location-based protection

• Condition: Block checkout from specific IP ranges or restricted countries/regions if your UI supports this.

For each rule, define:

• When the rule triggers (e.g., before payment step).

• What combination of conditions means “block this order”.

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Step 3 – Customize the blocked checkout message

When a checkout is blocked, the customer should see a clear explanation.

In the rule’s advanced or message settings:

• Headline:

  • “We can’t complete this order”

• Body examples:

  • “This checkout is only available for approved wholesale customers. Please log in with your wholesale account or contact us.”

  • “We’re unable to process orders from your region. If you believe this is a mistake, contact support.”

Include:

• A link to contact support or request approval.

• Any necessary compliance text (if blocking for legal reasons).

Click Save.

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Test your checkout lock

1. Attempt a checkout as a customer who should be blocked:

   • Use a test customer or a normal retail profile.

   • Confirm the checkout displays your error message and does not proceed.

2. Attempt a checkout as an approved customer:

   • Confirm the order flows normally.

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When to combine with other locks

Checkout Lock works best when combined with:

• Catalog-level locks (hide products/collections from the wrong users).

• Price/visibility rules (hide prices from guests or unapproved users).

• Tag-based approval flows from your B2B apps.

Together, they give you a full stack of protection: From who can see what → to who can actually place an order.