There are different logins required for different ACU systems.
The terms ‘username’ and ‘User ID’ are used interchangeably and mean the same thing.
When presented with this login screen use [email protected]

When presented with this login screen use your User ID (without @acu.edu.au).

Review these help instructions:
If you’re still having trouble logging in, please contact Service Central on (07) 3623 7272 or on extension 7272 for assistance.
Visit Service Central to access Corporate Services.