There are times when a student's record in Total Registration may not match correctly to their College Board data. This could be due to a number of factors. If this happens, you can click the Unmatch icon to manually unmatch the records.
Simply click the icon from any of the tables in the Reconcile utility as shown in the below screenshot:
The Undo Match window will open and auto-populate the student's name, TR reference number, and AP ID. Click in the selection box to place a checkmark next to the student's name and then click the Undo Match button.
Be sure to refresh your Reconcile page or even begin again by going to AP > AP Report Center > Utilities for CB Enrollment > Reconcile Students Between TR and CB. When the Reconcile utility refreshes or reloads, the student's records should match if they enrolled exams in College Board and registered in Total Registration.