In the Variable Products field, you can activate to work with the variations that are on your Shopify. Namely, if there are variations in your shop, it is desirable that this option is set to Active so that ERPAG will be able to download products with all variations. However, if you do not have variations on your shop, this option can remain Inactive. Some shops have installed plugins that, based on variations, allow you to define different prices for the same product. Since this is the case with the same product (and not the variation), this option should remain Inactive.