Below help sheet is based on Unleashed being the master for inventory
At DSYNC we are asked frequently how website shopping carts like Magento or Shopify deal with product and inventory variables. Particularly if the products are simple, have variants or are configurable.
Inventory levels are based on actual physical products (simple products in Magento, Variants in Shopify). Unleashed does not need to know about configurable products and only deals with simple (physical) products inventory levels. So the first connection we make is inventory levels to synchronize Unleashed products with Magento simple products with Shopify variants
Products (name, description, sku, etc) can then be simple and configurable in Magento/Shopify. Unleashed doesn’t need to know about configurable products as these are not physical products which are part of the order. Shopify is their master for products (create product in Shopify) – based on this we will have a connection with Magento to publish these products online and make them purchasable. Shopify ‘Product’ will be matched to Magento ‘Configurable Product’ and Shopify ‘Variant’ will be matched to Magento ‘Simple Product’.