@vvrangler Thanks for your help it seems like the module is login in correctly, because there comes a login request on my other devices with the 2fa code.
But no Birthdays shown. The birthday.ics seems to be free from birthday dates. And no matter I use your way for the config or I’m using a app specific password, the magicmirror log says login failed.
[2020-04-09 18:39:16.239] [LOG] Received config for MMM-iCloud-Client
[2020-04-09 18:39:16.243] [LOG] syncing iCloud
[2020-04-09 18:39:17.158] [LOG] Serving iCal
[2020-04-09 18:39:20.354] [LOG] login failed
Are your birthdays really showing?