When looking at the output of your appeal mailing you may notice that two members of the same houshold were pulled into the same letter. Upon looking at your appeal configuration, you notice that you had "Send one letter per household" selected as well.
We are currently evaluating this issue and will update this article when we have more information.
Steps to Duplicate
Navigate to Marketing and Communications > Appeal Mailings
Add an Appeal Mailing
FIll out the necessary fields and click the radiobutton "Send one letter per household". Click Nex
In "Selection of constituents that will receive this letter" click add. Add a query that pulls two members of the same household.
Define your mail content, or choose the Export a .CSV file option.
Run the mailing
Download the output to see that both members of the household were processed into the mailing.