Hi, new to the forum so forgive me if this has been covered previously. I have basically (2) columns of data, "Project Code" and "Billings". I have 18 different project codes, or, numbers 1 thru 18. I want to sum the "Billings" for each project code. I am a little familiar with the Vlookup function, but I do not know how to get it to loop so that it "sums" all of the "Billings" for each product code. Could someone help me with that?

Brad