"The Control Source for the Combo was Orders_Table.[Order#] field".Are you sure that the Field is "Updateable", you haven't made it an Autonumber by mistake
No it is not an AutoNumber. My users are using a previous version of the program attached to that same field and it is allowing them to enter data and save it.


Also is the actual Recordset for the Form Updateable?
I do have allow edits, allow additions, and allow deletes all set to true.

Is it a Query, can you add an order # in it manually?
Yes it is attached to a query. And I can manually add an order# to that queary

Also in the Form manually?
No, whenever I add it manually or through the combobox in the form and exit the field it, then the whole line disappears.