As an alternative to using the Active Directory Bridge to import users into the JumpCloud directory, AD users can be exported to CSV, then imported using our CSVImporter.
PS C:\Users\Administrator> import-module activedirectory
PS C:\Users\Administrator> Get-ADUser -filter * -Properties GivenName,Surname,SamAccountName,EmailAddress | Select Given
Name,Surname,SamAccountName,EmailAddress | Export-CSV c:\Windows\temp\userlist.csv
This will result in a CSV that will have the first four fields populated. It can be imported as is by adding five additional blank fields for a total of nine, or continue building the data per Importing Your Users into JumpCloud