Transferring SU activation to a new computer

I want to replace my laptop (MacBook Air) with a new one (MacBook Pro) and want to make the transition with Sketchup 2019 as easy as possible.

How do I deactivate the app in the old computer? Or do I ‘deactivate all’ and then reactivate on my new laptop and my desktop?

Thanks.

Remove the license in the current installation under Help in SketchUp. Then you should be able to install and activate it on the new computer.

Thanks!