I would like to activate "Manage customer payments".
As Admin user, I went to the Settings/Invoicing menu.
I checked "Manage customer payments" and clicked on "Apply" button. I got the warning message "The name of the period must be unique per company!", but, the option was not registered.
Even if I don't change anything to the screen and only click on "Apply", I get the message...
I work with the version "Version 7.0-20130419-232454".
I checked the period management screen, and I don't see any problem in the name of periods...
Menu Invoicing/Configuration/Periods/Periods =
Period Name; Code; Start of Period; End of Period; Opening/Closing Period; Status
Opening Period 2013; 00/2013 01/07/2012 01/07/2012 Open
07/2012; Q1/2013; 02/07/2012; 30/09/2012; Open
10/2012; Q2/2013; 01/10/2012; 31/12/2012; Open
01/2013; Q3/2013; 01/01/2013; 31/03/2013; Open
04/2013; Q4/2013; 01/04/2013; 30/06/2013; Open
Période d'ouverture 2014; Q0/2014; 01/07/2013; 01/07/2013; Open
07/2013; Q1/2014; 02/07/2013; 30/09/2013; Open
10/2013; Q2/2014; 01/10/2013; 31/12/2013; Open
01/2014; Q3/2014; 01/01/2014; 31/03/2014; Open
04/2014; Q4/2014; 01/04/2014; 30/06/2014; Open

Could somebody help me to find a solution ? Thanks,