here is the scenario.

1. Ticket is Assigned to Technician1

2. 1 task is assigned to Technican2

3. Role is Set as Assigned to him[Requests and Changes only]

Now the issue is technician2 cannot open the ticket. with below error.

"Request does not fall under your permitted scope.  So you are not authorized to update the same."

However if a change the role of technician to "All in group & assigned to him[Requests and Changes only." Technician2 will be able to view the ticket, However I don't want all technician to have views on all ticket except for ticket that is assigned to him only or ticket with task that is assigned to him. not all ticket.