Ubisoft game asks for an activation code when I'm trying to launch the game

Oh come on Ubisoft. The activation is supposed to be keyless. Now, don't panic, we have a solution.

Please, follow these steps:

1) Launch Ubisoft Connect client and log in to your account.
2) Click your avatar in the top right corner and navigate to the "Account Information" section.
3) Click "My Games" on the left.
4) You will see the list of all your purchased games and the "Show key" button next to them.
5) Click the "Show key" button to reveal the activation code for your game.