How to access SARJ
Ask your Jira site administrator to grant you access to your desired project if you are not a Project admin.
Refer to this page for the same.
If you are a team member / contributor -
You can access SARJ from the Apps menu. Just click on Apps>>Smart Assignments and Rotations for Jira (SARJ)
It will take you to SARJ Dashboard, where you can add all the gadgets you require from the list.
(Note - You will only see gadgets that are applicable to you, example if you are not a SARJ admin, you will not see 'Manage Approvals' gadget.)Use this dashboard to manage your work and provide inputs to your SARJ admins using respective gadgets.
If you are a Project admin -
Scroll to your respective projects and go to project settings.
Find and click on Smart Assignments and Rotations for Jira under the Apps Menu
Turn the toggle on to enable SARJ and start creating your schedules/rotations. You will now be able to see the project and its related config in SARJ Dashboard.