I have made a costumerF from CustomerT. Then an ExtendedCostumerF from ExtendedCustomerT. I have the CostomerID in both forms, as an autonumber in CustomerT and as a number in ExtendedT. In ExtendedF I put in a combobox with the CostumerName from the CustomerT and linked the CustomerID from both tables. Then I changed the Default Value of the Combox with the name you gave. But when I open the customerF og click on ExtendedBoutton it only opens an empy form, unless if there is a form already filled in for the Customer. Then he opens this customerF. But he does not fill in the CustomerName as a default as you show on the video....