[UPDATE, Oct. 13, 2016: According to Business Travel News, Concur in early 2017 will include expense receipts and credit card transactions to augment traveler tracking within the Concur Messaging system.]
During a crisis, business travelers don't always check in with their companies when requested to do so. That may result from complacency or ignorance to corporate policies. Perhaps their phones are lost or not working. Travelers might have booked outside designated channels and their employers don't know where they are . . .