To be able to change your license, either because you upgraded your plan or because you want to try the LongoMatch PRO trial during 15 days, you will need to:

1. Open LongoMatch and go to "Preferences".

2. Go to "Account".

3. Click on "Change license" and select the license you want to activate from the panel.

Once you've done that, if you go back to the Homepage, you will see your account upgraded.