While we are using the official API Google to "Sign in with Google" or access your YouTube/YouTube Music, it's possible that you got an error while trying to connect these services on Soundiiz.
First, be aware that it's not possible to use these services on our Soundiiz Android application; you must use Soundiiz directly in your browser at https://soundiiz.com/webapp
Then, if you are using a Google "managed" account (for example, by your company/employer), it's possible that you will not be able to connect YouTube/YouTube Music on Soundiiz.
Finally, if you got an error message in the login process like "Something went wrong there. Try again."; we recommend you give it another try with another browser/device/network or using your browser's "private tab".
Also, try to disable any browser plugin (like VPN extension, AdBlock...) you could have enabled.