On sheet 1, column A1:A5, I have a list of names: Joe, Smith, Mary, Joan, Bill. Column B1:B5 of the same sheet contains reference codes for the names in A1:A5: JSM, SUT, MRE, KIT, and KTM.
On sheet 2, column B1:B5, I have a list of codes that includes some, but not necessarily all, the same...