I used this formula from another community post which counts a person's name only once if it appears multiple times in the column. However, it does not count a person's name at all if the name only appears one time and I need it to. In the example below, how can I get it to count Doe, John as one AND Mouse, Mickey as one as well in that last column.
=IF(COUNTIFS(Name:Name, Name@row ) > 1, 1)
Example: