3DS 2.0 TransactionStatus

Value Description
Y Authentication/account verification successful
N Not authenticated/account not verified; transaction denied
U Authentication/account verification could not be performed; technical or other problem as indicated in ARes or RReq
A Attempts processing performed; not authenticated/verified, but a proof of attempted authentication/verification is provided
C Challenge required; additional authentication is required using the CReq/CRes
R Authentication/account verification rejected; issuer is rejecting authentication/verification and request that authorization not be attempted
D Challenge required; decoupled authentication confirmed
I Informational only; 3DS Requestor challenge preference acknowledged