Migrate from workspace Products to Projects
In case your tenant is based on the former tenant template, it will most likely contain a Products workspace. This workspace should be replaced by the Projects workspaces of this template. As some of your workspaces will have links to this former Products workspace, these links have to be changed and demand. Performing a “where used” on the [WS] Product picklist in the Picklist Manager will reveal a list as follows:
You should replace this usage to point to [WS] Projects instead.