I have a combo box that is connected to the Contacts entity in Common Data Service. The CDS Entity has columns for First Name, Last Name and Full Name, which displays as First Last. My customer would like the combo box to display names as Last, First. But I can't seem to find a way to concatenate two columns as the primary field for the combo box. Do I have to go back to the entity and add a column?
Also, and this one is probably easier, how do I sort the combo box so it displays all the names in alphabetical order by last name?