Hi I have two subforms on my form which are using same reference to the main form. The main form consists main record number (Purchase order number) subform is a materials list for that purchase order. second subform is in fact query which summarises how many of these materials were delivered (basing on other form/table). So as result I'm getting a list showing how many materials from PO were delivered. Now, I want to synchronise these two subforms, so when I'm scrolling one, the other one follows. I found one post in which there was a code for current event in both subforms: Private Sub Form_Current() Dim rs As Recordset If (Not IsNull(Me![ID])) And _ (Not IsNull(Parent.OtherSubFormControl.Form![ID])) And _ (Me![ID] <> Parent.OtherSubFormControl.Form![ID]) Then Set rs = Parent.OtherSubFormControl.Form.RecordsetClone rs.FindFirst "ID = " & Me![ID] If Not rs.NoMatch Then Parent.OtherSubFormControl.Form.Bookmark = rs.Bookmark End If End If End Sub Now, maybe it's correct, but could anyone explain what [ID] is. Is it a lookup ID to the main form? If yes, my subform doesn't contain it. I've made both subforms using wizard and they contain only data I've picked for display on main form. PLease help.