The user clicks a command button, a form opens, the user enters data.
Both forms are from the same table.

Same main form - the user picks a specific value from a drop down, a form
opens, the user enters data.  But when the user goes to the next field on the
main form and enters data a window pops up - "The Data Has Been Changed
another user edited the data....."
What can I change to make this pop up not come up???

Private Sub TR_PROBLEMCODESUFFIX_AfterUpdate()

   Dim stDocName As String
   Dim stLinkCriteria As String
If Me.Dirty Then Me.Dirty = False

   stDocName = "f_Drugs"
   If Me.TR_PROBLEMCODESUFFIX = "CO4" Or Me.TR_PROBLEMCODESUFFIX = "MS3" Then
             
   stLinkCriteria = "[ICNNO]=" & "'" & Me![ICNNO] & "'"
   DoCmd.OpenForm stDocName, , , stLinkCriteria
End If
End Sub

A button on my form opens another form for the user to make comments.
Both forms are from the same table.  I've done this many times, no problem
and the tables gets updated fine.

Now, I have a form pop up when a value is picked from a drop down.  The user
enters the data and closes the form and moves on.  When they try to enter the
next field data on the main form a message pops up " Another user