Multiple Resources assigned to Contact List type column (new release today)
=SUMIFS(Amount:Amount, [Assigned To]:[Assigned To], CheckName@row)
does not match the [Assigned To] when the Contact name in [CheckName] matches. (It does for single instances)
It is possible to possible to get into where this:
=SUMIFS(Amount:Amount, [Assigned To]:[Assigned To], [Assigned To]@row)
returns #INVALID OPERATION
This DOES NOT OCCUR if the "Allow multiple contacts per cell" is unchecked.
It MAY occur when it is checked, even if there are no multiple selections.
User names are done by Name not Email.
This will allow two Bob Smith's to cause confusion.