Hi Huarlem. Thank you for your assistance.

I have changed my combo box properties to match what you have shown. The result is the same. In the attached screenshot, the column with the combo box is Standard Currency. The value "TTD" is displayed in both records because it is the first value in the combo box list and not because those records have a Standard Currency of "TTD". Is what I'm trying to accomplish even possible? :(

Hi Dorine, thanks for your assistance.

Yes. Here is a screenshot of the aggregate within the screen preparation. I have found that the combo box input is inserting "0" (aka null) into the database. This may be the root of the problem... But why is it doing that? have I not set the combo box's properties correctly? A screenshot of the combo box's properties can be found in my reply to Mr. Huarlem Lima above.

Ok, yes, that might explain it, probably showing the first/default in case zero, not sure ?? But yes, not storing the choice is the source of your problem.

So this is what I said earlier, you don't really need the whole StandardCurrency in your aggregate, so I'd get rid of it, as it is only confusing the matter.  

Or at least make sure that your combobox is bound to EditableTable.List.Current.Company.StandardCurrencyId  and NOT EditableTable.List.Current.StandardCurrency.Id.  

Because at some point you probably call something like UpdateOrCreateCompany, passing EditableTable.List.Current.Company as input.  So at that point, it is of no use to you, that you bound the combobox to EditableTable.List.Current.StandardCurrency.Id.  , you're not doing anything with it.