dear @dprutt
it means you submitted an expense report which need to be reviewed by "Concur Audit" or your company expense processor team.
Depending on the settings were done within your Company, it could be a random selections of expenses that get audited, or because you had an expense type which need to be audited. You may ask to your Expense department, but I would guess that in the next few days you don't see the status change (wait 4 days) you may ask, but it is completely normal, Audit is well spread used in many other companies.
Kind Regards
Alessandro Munari
