Each user must be synced individually. If a user's name does not automatically appear in the dropdown list, it indicates the system couldn't match their first and last name.
Select the correct name from the dropdown list for the user, then click 'Sync' to synchronise them with Employment Hero. A tick will appear next to their name to confirm successful syncing.
If you cannot find a user's name in the list, use the 'Create in Employment Hero' button to manually add them to Employment Hero.