Why set a thumbnail picture? The thumbnail picture is showcased within the system across product lists, catalogus, digital product passport etc. By adding a picture you make your products more presentable.
How to set a thumbnail picture?
Go to the "Assets" tab on a given product:
Find the given picture and mark is a "default" with the star:
Now the thumbnail is set and live across the platform.
How to upload a picture?
You can upload a picture via the green "Upload" button on the Assets tab or via Excel files. Learn more here.