Hi Pete,
I wanted to use the formula for 6 sheets, I managed to do for five sheets , then I have a warning as there are too many inserted formula.
I am not good at codes, what can I to use this for more then 5 sheets.
=IF(ISNA(VLOOKUP(A2,Wrk1!$F:$G,2,0)),
IF(ISNA(VLOOKUP(A2,Wrk2!$F:$G,2,0)),
IF(ISNA(VLOOKUP(A2,Wrk3!$F:$G,2,0)),
VLOOKUP(A2,Wrk3!$F:$G,2,0)),
VLOOKUP(A2,Wrk2!$F:$G,2,0)),
VLOOKUP(A2,Wrk1!$F:$G,2,0))
Thanks