Before completing this process, make sure that every student has a UPN. This ensures that duplicates are not created when the student data is reimported.
To set ULNs in bulk, you can use our export and import process. Go to School > Data > Export > CTF Export and select the ULN tab. Click +Add in the top right to create a new CTF export.
Once the CTF is ready to download, you'll get a notification in the top right of your Arbor site. Click this to download the CTF to your computer.
Don't open the file - you can use the finder tool to find the file in your folders.
You'll then need to take a look at the S2S ULN service: user guide to import your CTF, then download the new CTF containing the generated ULNs, as per the instructions.
You'll then need to import the new CTF into Arbor - this will update the student records with ULNs. You can do this from School > Data > Import > CTF Import. Take a look at this article to see how to complete your import.