It's not a duplicate; it's two different registrations
Every song you create actually has two separate legal copyrights, and each one requires its own registration:
The composition: the underlying melody and lyrics you wrote. This is registered at the MLC (for mechanical royalties from streams/downloads) and your PRO (for performance royalties).
The sound recording (master): the specific recorded version of the song. This is registered at SoundExchange for neighboring rights (digital performance royalties paid to the recording owner).
When Mogul flags both a composition registration and a recording registration for the same song title, it is not showing a duplicate, but rather two separate, valid registrations that each need to be completed.
A real example
If your song "Let Go Remix" appears in your Completed list (composition registered at MLC) and also in your To-Do list (recording not yet registered at SoundExchange), this is correct and expected. Although the composition side is done, the recording/neighboring rights side still needs to be registered. These are different royalty types, organizations, and ownership registrations, even though they're for the same song.
How to tell which type each item is
In the Fix Issues section, each item shows the type of registration needed. Look for:
"Mechanical" or "MLC": this is the composition registration for streaming mechanical royalties
"Neighboring Rights" or "SoundExchange": this is the recording registration for digital performance royalties
"Performance" or "PRO": this is the composition registration for performance royalties at your PRO
Do I really need both?
Yes. If you own both the composition and the recording (which most independent artists do), you're entitled to royalties from both. Skipping SoundExchange means missing the neighboring rights royalties your recording generates every time it's played on digital radio and streaming services.
What if it genuinely looks like a duplicate error?
If you see the exact same registration type (e.g., two MLC mechanical registrations) for the same song, that may be an actual duplicate. Contact support via the chat bubble with the song title, and we'll investigate.