This is how I found the e-commerce I followed on Toutiao and Douyin. First, open Toutiao, then search for the e-commerce I followed. The e-commerce and its Douyin name will appear in Toutiao. I thought I couldn't find it at first because Toutiao and Douyin are two different platforms. I searched for the Douyin e-commerce using the method mentioned above, but I didn't understand it at first. A friend who sells things online told me that maybe the e-commerce you followed is registered on both platforms, so you can find it. Maybe.