Content is translated from English using DeepL Pro.
When booking a subscription with only an single-user license, the user of that license has full control over all settings and changes made to the subscription.
If additional licenses are purchased, they are divided into two different roles: team admin and team member.
Team admins can make changes to the account settings, as well as upgrade and downgrade the subscriptions, while team members cannot.
Find more information on the different roles in this article.
Team admins also use a license in a team plan, same as team members, unless subscription management by groups is enabled. You can find more information in this article.