My constant contact username and password was recently changed.  I went to change and received the following error. "You cannot change Constant Contact user before all uploads are complete."  Any insight is greatly appreciated.

please correct this code and help me earn this badge ...have completed all tasks ..except this one ....

IF( MONTH( NOW() ) = 12,
  DATE( YEAR( NOW() ), 12, 31 ),
  DATE( YEAR( NOW() ), MONTH( NOW() ) + 1, 1) - 1