Recommended Rule Setup

Start with product-level testing

Before enabling global rules, test the plugin on one or two products.

1. Set the product minimum.
2. Set the product maximum if required.
3. Set the quantity step.
4. Save the product.
5. Test the product page.
6. Add the product to the cart.
7. Change the cart quantity.
8. Proceed to checkout.

Then enable global rules if needed

Global rules are useful when most of the catalog uses the same quantity structure. Use product and variation overrides only where different behavior is required.