On macOS, type the following into the Terminal to return the license (replacing with the actual installation location, such as /Applications/Unity/Unity.app/Contents/MacOS/Unity): -quit -batchmode -returnlicense -username -password 'XXXXXXXXXXXXX' Returning the license through the command line Important: You can’t return your license in the Unity Hub unless you are signed into your Unity ID. If you see a message at the bottom of the window warning you that you need to be logged in to manage your license, select the LOGIN button from the bottom right and then enter your Unity ID and password.
Select License Management from the list on the left. Select the Settings button from the top right of the Hub. If your machine is still accessible, you can return your license through the Unity Hub: Select the Disable all Activations button. Select the Activations button to the right of the serial number. This lets you access subscriptions and perpetual licenses purchased through an older version of the Unity store. If your seats don’t appear here, select the manage your other licenses link (B).
Manage your Licenses page under your Unity ID accountĮnter your serial number in the Serial Key (A) field if it is not already added. Open Unity ID subscriptions account page. If your machine is no longer accessible, go to your Unity ID subscriptions account page to return (manage) your license: If your machine is no longer accessible, you can reset your license activations for a serial number from your Unity ID page on the Unity Store. You can do this either through the Unity Hub or from the command line. Try to return your machine’s license before it is no longer accessible. You can “return” your license to the server if you need to start using Unity on another machine or if you no longer need to use that machine to run Unity.