Thank-you PHV, if I may elaborate, due to my new enlightenment...
Here's a little snippet, I got from "Help".
Dim ctlCurrentControl As Control
Dim strControlName As String
Set ctlCurrentControl = Screen.ActiveControl
strControlName = ctlCurrentControl.Name
It may require a little thought, on how you run this, or which event you put it on, in order to not prematurely change the focus.
Maybe a global variable, and the on change event of every form?
Depending on your objective..
If strControlName = "txtField1" Then
MsgBox "EmployeeRate must be entered, before editing the deductions field"
Hope this helps.
Thanks again, PHV!