From the Volumio UI,:
Go to Settings
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Click on Sources
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You will find the login login options to enter your TIDAL, Qobuz and/or Highresuadio.com credentials. Important: On the Volumio UI, make sure you are login on your MyVolumio account and your device is enable (You can see if your device is enable on the profile page)
*only for Virtuoso and Premium users
See video tutorial here :