In Odoo 10/9

Once a new Lead/Pipeline is created by UserA, then I send out email notifications (Invitation Mail)  to all the fellow-users mapped for a Sales Team.

Though they get the notifications via mail, Need-Action/Unread-Message Counter against Pipeline Menu doesn't seem to work for those users when they login.

Am aware pipeline uses different and slightly complicated Kanban View, but still when accessed from List View, the counter behavior must work like it does in any other List View.

Anybody faced this issue.