Apple School Manager
You need to setup the Data Source Connection in ASM before setting it up in UMS.
You need the username and password.
This must be done between step 8 and step 9 in this documentation How to setup Apple School Manager SFTP
Installation
Description
Name of the setting.
This is also used as Location Name in ASM.
Username
Username to access SFTP.
Password
Password to access SFTP.