Greetings, I am trying to obtain a found set of folks that responded with a contribution to not both an appeal sent this year and an appeal sent lasy year (not either, but BOTH). Each of these appeals is represented by a different source code. In both FIND mode and doing a query, adding a new request for the second source code just yields a batch of people that responded to one OR the other appeal, not both as I am seeking. Any suggestions?
