The new user will receive an email with a link to login.
Datadog provides 3 user roles:
Administrators have access to billing information, the ability to revoke API keys, can manage users, and can configure read-only dashboards. They can also promote standard users to Administrators.
Read only users are created by administrators and do not have access to edit within Datadog. This comes in handy when you’d like to share specific read-only views with a client or where a member of one business unit needs to share a dashboard with someone outside their unit.
NOTE: You must be an administrator of the team to disable members. You cannot permanently remove users as they might own events, dashboards, etc. which are not supposed to be removed. Disabled team members will disappear from the administrator’s team page UI automatically after one month.
Hover over the avatar for the user you wish to disable. Choose Disable from the menu.
NOTE: Only team Administrator can promote members.
Additional helpful documentation, links, and articles: