A Design variation is a single design with additional variations. We can create Design Variants based on multiple canvas sizes
Create a Canvas Size Variation
To get started, load a Design or open one for edit from your Admin Designs page
Click the Design tab on the left panel and then click the Enable Design Variation button to select the Canvas Size Variation and Enable it
A form should appear where you can provide the variation details and add your size variants:
Allow Custom Values: Enabling this allows customers to create their own unique size dimension
Load from selector: This allows the Editor to load values from your product page.
Apply to all pages: This will apply the dimension to all pages and not just the current one
Calculate with areaEnabling this option propagates the
width x heightarea as a single value to your product page price calculator
The Variation element selector is used to instruct the editor which element in your product page has the sizes and is only displayed if you have enabled the
load from selectoroption.
Save your Design and assign it to a product and test as a customer on your web store.