Advanced Filter Function

Hi Sisense Community! I am currently building a sales dashboard and would like to compare actual sales numbers and sales target. However, the data that I have for actual sales is only until the current date, but the sales targets are until end of year. Hence, my current dashboard has a lot of empty values in the 'Sales Amount' column, since the sales didn't happen yet (first screenshot). 

My goal is to filter out the 'Sales Target' values where the 'Sales Amount' column is still null. Is there a way to do so with the help of an advanced filter? Thank you 🙂