Hi, I am seeing the file read error with the IAM token: 230324 11:00:02 722982 multiuser_UserSentry: XRootD mapped request to username that does not exist: _token_subject_ 230324 11:00:02 722982 ofs_stat: unknown.102415:[log in to unmask] Unable to locate /store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/A64CCCF2-5C76-E711-B359-0CC47A78A3F8.root; permission denied I am wondering why the token subject is showing as the username instead of mapping specified in the token-map json file. Thanks, Bockjoo ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-L&A=1