The Combinação218 combobox is not bound. It will show the same value in all 'rows'. Need to bind to field of form RecordSource. What field do you want this value saved to?
for each step has one responsible. To avoid having to keep typing put the list box. Analysts are also responsible for the completion of the steps. For each step may have a different charge.
An alternative is to set the form's filter:
Me.FilterOn = False
Me.Filter = "CodProduto=" & Me.combProduto
Me.FilterOn = True
Just add the code you sent me in each filter?