inventory_system => { type => 'text' },
invnumber => { type => 'text' },
invoice_mail_settings => { type => 'enum', check_in => [ 'cp', 'invoice_mail', 'invoice_mail_cc_cp' ], db_type => 'invoice_mail_settings', default => 'cp' },
+ invoice_prevent_browser_back => { type => 'boolean', default => 'false', not_null => 1 },
ir_add_doc => { type => 'boolean', default => 'false', not_null => 1 },
ir_changeable => { type => 'integer', default => 2, not_null => 1 },
ir_show_mark_as_paid => { type => 'boolean', default => 'true' },