3811958 - Error: "We have not been able to determine whether your purchase was successful...."?

User received a warning message during a Travelfusion booking in Concur Travel.    

ATTENTION!
 We have not been able to determine whether your purchase was successful. If you do not receive an email confirmation with a confirmation number directly from the Airline within next 15 minutes. please contact the airline to confirm your booking. please do not attempt to buy this again unless you have verified you do not already have a booking."
 

When booking a flight via Travelfusion, user received a warning message that Concur was not able to determine if the purchase was successful. This can be due to connection issues between the airline and Travelfusion, or other specific errors. , KBA , CON-SRV-TRV-ADM-LAN , View Airlines , Problem