When our customers ask for way to access directly Service Desk, we tell them to provide the Service Desk URL. If the customer logs out at this point (when accessing the Service Desk URL) and then tries to login again, he is redirected to the common login page in JIRA.
Create a whole set of screens and access panels specifically for Service Desk, so the customer that access Service Desk has restricted access only to the Service Desk add-on as expected. This includes login and logout all inside Service Desk without never accessing/viewing JIRA itself.
- John is the customer of a company which uses Service Desk.
- John receives a link in his email to access the support panel of the company (Service Desk).
- John access this URL and he is at a Service Desk login page.
- John logs out and sees the Service Desk logout page, which directs him to login again in another Service Desk page.