How do limitations apply to product variations?

For a product with combinations (product variations), the minimum and maximum quantity settings distinguish a shared limit from values specific to each combination.

In the module’s settings on the product editing page, the “Consider the variations as a single product” option lets you choose the scope of the values you enter:

For these minimum and maximum quantity fields, 0 means no limit is set in that field. This does not describe batch rules.

After changing modes, save and reopen the settings to check the stored values. Test adding products from the product page and changing quantities with the buttons and input fields in the cart, using several combinations.