Ok, so basically i want to do what it says in the title. I have two tables that i need to lookup the array for the two given items and take the sumproduct. vlookup obviously doesn't work with arrays so I'm not sure how to do this. Let's say there are two tables, 200 rows by 10 columns each. Table one i want to look up the row that has 001 as the key, table two i want to look up the row that has SUB as the key, and take the sum product. Any suggestions?