As you may know, we have a very popular international shipping app for Shopify. We also support Miva, WooCommerce and the 3PL Central (ask us via Y-Chat) warehousing platform. We are constantly testing other platforms with Yakit and will publish blog articles on these. Stay tuned.
You can export orders from any platform in a csv or excel file and easily convert it into a Yakit Manifest. Our Support Yaks will be able to assist you in doing so. You can also push orders from your custom platforms via our easy REST API.