A Musixmatch User ID is a code attributed to your account. It's really useful for requesting technical assistance, as it helps our support team locate the exact account you're looking at (rather than another that may still have the same email address).

You can find your User ID on the 8th line of your Debug information between the 'URL' and 'User Token' sections.
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Your User ID can be safely shared with Musixmatch staff moderators, but remember not to share your Debug information with anyone else or in any public channel, as it contains personal data.