Comments

• You are the man, Ben. Issue is resolved after removing ONLY_FULL_GROUP_BY from 'sql_mode'.

  Here's how I permanently removed in Campaign sent to 0 recipients (Ubuntu & PHP 7) Comment by Zack June 2016

• Thank you so much for your help, Ben. Here's the MySQL response:

   +------------------------------------------------------------------------------------------+
   | @@sql_mode
   +------…            

  in Campaign sent to 0 recipients (Ubuntu & PHP 7) Comment by Zack June 2016