Currently all users can create a linked ticket with a team they do not have permissions on. Emails can be shared by clicking on the + on top RHS. Although the email will be shared with the group you do not have permissions on, you cannot see this shared ticket reference in the email, it only shows a + sign. If the team has access to both groups they can see the ticket ref it was shared with beside the +.
Our team inIreland would share quite a lot of comms with the IOM team but are unsure if they have actually shared the email or not. W
We would like the ticket ref of the other team to show, although you cannot access the ticket due to rules on different user groups. It can be greyed out.