Applies to Launchpad Mini MK3
To set the Launchpad Mini MK3 up with Ableton Live 10 please connect your Launchpad and then open Ableton.
Then go to the Preferences (Options > Preferences on Windows, Ableton Live > Preferences on macOS) and go to the Link/MIDI tab:
Then select the Launchpad Mini MK3 Control Surface:
And then set the Launchpad Mini MK3 DAW Out and DAW In for the Input and Output ports:
Then have the MIDI port setup match the settings shown below: