Good morning,

I am trying to identify records in which 'Start Date' is null and/ the
'Unknown or -30 days' field Checked. I tried using a If statement, but I
received errors each time.
=if((C2 IS NULL) AND (D2 ="Checked"),[Ok], [Problem])

Start Date Unknown or -30 days
20071017 Not Checked
20071017 Not Checked