=IF(VLOOKUP(F21, Tallie1!$C:$F, 4, FALSE) = "absent", P21, "")
is the formula, which works, however, for the cells that don't qualify I would like them to be blank..so I tried....
IF(ISERROR(VLOOKUP(F21, Tallie1!$C:$F, 4, FALSE) = "absent", P21, "")
But still no resolve...Please assist