Sign Customiser

Troubleshooting Zero-Amount Products Purchased on Shopify

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If you’re experiencing zero-amount products being purchased on your Shopify store, it is most likely a bot built to detect $0 products on Shopify and purchase in the hopes of receiving a free product.

This guide provides solutions to resolve the issue.

Sign Customiser can stop $0 products being created or synced to your store in the first place. This is the quickest fix, and it’s on by default.

To check it’s enabled:

  1. In Sign Customiser, go to Settings > Store.

  2. Find the Store Settings section, headed Zero-dollar product protection.

  3. Tick Block zero-dollar products, then click Save.

With this on, any product creation request with a $0 price fails before the product reaches your store, so bots have nothing to buy.

If you’re still seeing zero-amount orders after enabling this, the causes below cover the other ways a $0 product can slip through.

Common Causes and Solutions

Product Pricing in Shopify Admin

When using a product template for your customiser, the base product price in your Shopify admin may be set to $0. This allows customers to proceed without being charged.

Solution:

  • Update the price of the base product in your Shopify admin to a value greater than $0 (e.g., $100).

  • This ensures a minimum price is applied to prevent zero-amount checkouts.

Using a Page Template Instead of a Product Template

If you want to avoid product-related issues altogether, you can use a page template instead of a product template.

Solution:

  1. Migrate your customiser to a page template. Follow our guide: Add Sign Customiser to a Page for detailed instructions.

  2. Delete the associated product in Shopify to prevent confusion.

Using Shopify Flow to Auto-Cancel Zero-Amount Orders

If zero-amount orders still occur, you can automate their cancellation using an app like Shopify Flow. However, do note that You may still incur charges for any order-based apps (e.g., post-purchase upsell apps).

Solution:

  1. Install the Shopify Flow app.

  2. Set up a workflow (follow this guide for more information):

    • Trigger: Order created.

    • Condition: Order total equals zero.

    • Action: Cancel the order.

      Refer to the Shopify Flow guide for a detailed explanation.

  3. Save the workflow, and Shopify Flow will automatically cancel zero-amount orders.