Reseller ID
A Reseller ID is a unique identifier for each Apple Authorized Reseller or carrier who participates in Apple School Manager. When you add a participating Apple Authorized Reseller’s or carrier’s Reseller ID to your account profile and you give that reseller your Organization ID, you authorize that reseller to submit devices you purchased through them to Apple for enrollment in Apple School Manager.
If you don’t know the Reseller ID of your participating Apple Authorized Reseller or carrier, please contact them for assistance.