[Resolved] Activate cases assignation notification while making assignation by worflow and / or business rules

We have made development to assign the ticket to the user corresponding to categories of the ticket.

But the problem is that the new assigned user is not notify of this assignation.

We have check the email notification on assignation in the administration, It work while assigned manually from the web interface.

Do you know this problem and do you if the a way to avoid this problem, even if it's not upgrade safe ?

Best Regards,

Jérémy