User Account
An account is a combination of a username and password that allows TeamCity users to log on to it and use its features.
When created, a user account is automatically included into the "All Users" default user group.
User accounts can be created automatically upon log in depending on used authentication scheme. For details refer to Authentication scheme and LDAP Integration sections.
System Administrators assign Role and Permission (a set of permissions) for the user accounts. The types of roles which can be configured depend on which Editions (Professional or Enterprise) you have installed.
Guest User
The guest user role sets apart from all other roles available in TeamCity, and is suitable for a person who monitors the projects status and does not perform any commits to the project repository. Guest users can view projects and their build configurations and do not need any registration to access TeamCity.
For additional information on how to enable the guest users in TeamCity, see Enabling Guest Login section.
When a guest user option is enabled, the Guest user settings option becomes available on the Users and Groups page in the Administration section. For more details about assigning user roles, please refer to the Assign Roles Dialog page.
Any number of users can be logged in to TeamCity simultaneously as guests.
Guest user account is available for all TeamCity editions with the same Role and Permission.
As any other user account, the guest user can be assigned to a user group.