- Etsy has a limit of maximum 2 variations per listing. And for any measurement properties, you'll need to choose a sizing scale, which you can specify globally under MagetSync > Configuration. Without sizing scales, variations that rely on these won't be created.
For instance, if your property is 'length', choose from inches, centimeters, or other. Then when the listing is created any sizing scales will be created using your selection.
To learn more visit: https://www.etsy.com/au/help/article/3385
- Please also make sure your custom options don't have identical labels, otherwise Etsy will reject them