When you initially enroll, the system pulls in 90 days of activity for each in-house account.  This may take time and you may end up seeing the balance but not the activity immediately.  Continue with other activities in MX or CEB and check back in a couple of hours.  If at that time you’re still not seeing your activity, wait until the following day. If you don’t see the transactions the following day, open a ticket with Zendesk to find out why the process isn’t working as expected.