I use this way:
- Register koofr.eu free account
- Login to my account via web brouser and select “connect -> Amazon Drive”
- In Koofr root folder now available directory “Amazon Cloud Drive”
- rclone config -> new remote -> webdav with koofr user/pass and url “https://app.koofr.net/dav/Amazon Cloud Drive/” or “https://app.koofr.net/dav/Amazon%20Cloud%20Drive/”(without double quotes of course)
- That’s all. Hope this help someone.