Price calculation in square meters for products with free sizes

A price calculation by square meters for print products with free sizes can be set up as follows.

1. Go to the backend of your product in the Price tab
1.2 Set a price
1.3 Set the price type square meters and the calculation method quantity + formula

2. Now go to the "Free attributes" tab and activate them by checking the box.
2.2 In the fields, you can specify the default value, the minimum and maximum value according to the permitted product format.

3. Save the product settings