Yes, one more info please. How would you change Formula :
=IF(ISERROR(MATCH($E2, $A$2:$A$9, 0)), 1, IF(INDEX($B$2:$B$9, MATCH($E2, $A$2:$A$9, 0)) <> "X", 1,))
knowing that in E2:E9, so in $E2, I have not Numbers but Extracted Numbers from Text so my numbers are Text, and formula is not working...