The red codes are abbreviated exception codes for the punch and/or shift, as follows:
A = Added by administrator
E = Edited by administrator
F = Face error
G = Geo error
M = Missed punch
C = Credentialing Invalid
SE = Started Early
SL = Started Late
MB = Missed Break
SB = Short Break
LB = Long Break
LE = Left Early
LL = Left Late
OS = Out of Shift
PS = Prior Shift Conflict
NS = Next Shift Conflict
MS = Multiple Shifts
DO = Day Off required
Pn = Punch date is n days after Date column
★ = Flagged / Requires Approval