You can capture the error in a form's On Error event and display your own message instead of the standard Access message. If you use action queries in VBA code, you should be able to use the VBA Error Handler. This technique will not work if users delete records in data sheets.
Private Sub Form_Error(DataErr As Integer, Response As Integer)
Dim strMsg As String
If DataErr = 7787 Then
' continue after displaying the message
Response = acDataErrContinue
strMsg = "Someone else update the record."
MsgBox strMsg
End If
End Sub Terry L. Broadbent
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