I can't find the matchmaking tab in the Dashboard

Hi, I've been trying to implement some coop features in my game, but I'm having a hard time trying to find the matchmaking tab in the dashboard:

Things I've tried: 
- Submit the DUC including UserID, UserProfile, Friends, BlockedUsers, and Invites with their "Matchmaking" checked. (And the DUC is approved)

- Add the coop and multiplayer game modes in the metadata of the first draft

- Set the user reporting tool

Are there any other steps I have to take? I'm kind of lost since I couldn't find anything in the documentation either.