I have a Form ("Residents") with First_Name and Last_Name fields. On Success or Edit, these strings are added together and put into the Full_Name field. I use this Form as a subform.

When I add or edit a record through the Form itself, this concatenation works fine and shows up in the parent report; but it does not execute when I add or edit a record via the subform field nor does the record update in the parent form.

Edit:

Here we go.

PS: Subforms are tremendously useful and, from the number of forum topics, tremendously difficult. Better documentation is needed.