Search Cell values after change in second Sheet

[Emoncada]

I have Sheet1 and Sheet2.
I would like to have the Column A in sheet1 as the target. So after the user enters data in that column it would search for that value in Sheet2

It would search for that value in Sheet2 Column A also. I

f it finds a match it would let the user know

MsgBox "Ticket Already Exists."

Else
Do Nothing

Any help would be great.

[Emoncada]

I was able to find this and modified it a little and it works, hopefully this helps someone else

If Not tChange Is Nothing Then
    Application.EnableEvents = False
    For Each tCell In tChange
        If tCell > "" Then
            Set Found = wd.Range("A2:A60000").Find(tChange, LookIn:=xlValues)
        
                If Not Found Is Nothing Then
                
                FDate = Found.Offset(0, 2).Value
            
                    MsgBox "Ticket Previosly Entered on "& FDate & "." & vbNewLine & "Please Check Ticket Number Again.", vbOKOnly, "Ticket Exists"
                Else
                
                End If
        End If
        
    Next
        
End If