Understanding Blank Product Fields

Blank does not mean zero

An empty Min, Max or Step field tells Deviking MinMaxStep to look for the next applicable value.

The lookup order is:

Product → Global → WooCommerce default

For variable products, variation values are checked before the parent product.

Why this matters

This lets you maintain a clean configuration. If the whole store uses Step 5, you can keep Step empty on products and override only the exceptions.