About Emory NetID and OPUS

Hi, I have just recently been accepted to Emory Class of 2022. On the Blue and Gold pages, there is an instruction that says “You received your NetID with your acceptance letter including instructions for activating and setting up a secure password.” However, there is nowhere I can find this ID in my acceptance letter online from the Emory application portal, which I am really confused. Does anyone happen to know why? Thank you in advance!