If you only wish to add or update a single or a few users, you can do so in the Admin module via:
Admin → User Management → Departments and users → Users → Individual Update
A user must have a first name, last name and an email address in order to be created. We strongly suggest using an employee ID as well, but if your organization does not utilize employee IDs, you can create users without them.
Note: When deactivating a user, you'll be prompted to confirm the action and the user's manager will be notified:
For information on adding users via CSV upload, please see this article.