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.
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 want to avoid product-related issues altogether, you can use a page template instead of a product template.
Solution:
Migrate your customiser to a page template. Follow our guide: Add Sign Customiser to a Page for detailed instructions.
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:
Install the Shopify Flow app.
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.
Save the workflow, and Shopify Flow will automatically cancel zero-amount orders.