To bring in variations data, the following permissions will need to be enabled. For BigCommerce import instructions, refer to importing products from BigCommerce.

1. Go to Products > Primary source and check Product Options
2. Save
3. The system will prompt you to trigger an import to complete the process. Click RUN IMPORT. 

You can create links to the product options directly.

Create a new rule to append "?sku=" and the sku.

Set [link] to [link] + "?sku=" + [sku]

Please see our Help article for detailed instructions: Feed rules: concatenation.