On-Call Roles On-call roles let you assign a predefined duty schedule to an existing group of users. A common use case is to have system engineers in on-call rotations with a defined schedule. For each on-call role, a user is designated as a supervisor. They are responsible for the group of people assigned to the on-call role, and receive Horizon notifications when no one else is on duty. The supervisor must have admin privileges. Assign a group to an on-call role Before you can assign a group to an on-call role, you must create a group. Log in as a user with admin permissions. Click the Gear symbol at the top-right of the screen, and choose Configure OpenNMS Configure Users, Groups and On-Call Roles Configure On-Call Roles. Click Add New On-Call Role and specify a name, the associated group, a user to be designated as the supervisor, and a description. The description should be meaningful (for example, describe the team that the on-call role has been created for). Click Save. In the calendar, select a date and click the Add icon (+). Specify the user and designate an on-call schedule. Click Save. Repeat as necessary for other dates and users. Click Done to apply the changes. Groups User Maintenance