Once your learners have synced, you'll be taken to the Finished panel.
Refresh the browser page to immediately update the user and class information in the Admin Hub.
To check that your account has synced correctly, go to the purple Classes tab. The classes you've chosen to sync should have a chain link symbol in the 'Synced?' column, and their pupil numbers should match your register.
Next, go to Pupils > With Access. All of your synced learners should be placed in this tab automatically and have a chain link symbol in the 'Synced?' column.
If things aren't looking quite right, see Troubleshooting Your MIS Sync.