--- title: "On-Call Rosters" --- # On-Call Rosters > ## On-Call Roster Overview The On-Call Roster lets you create user groups to be notified when an alarm occurs. Each group includes a list of users in a specific order. Alarm pipeline's notification blocks must choose an on-call roster which identifies the users to notify for that notification block. Depending on the alarm notification profile used, the users can be notified one at a time (sequential), or all at once (parallel). It is important to remember that when an on-call roster is used for alarm notification, only those users on the roster whose [schedules](alarming\alarm-notification\user-schedule-and-roster-management\user-schedules.md) are active will be notified. ### To Create and Manage the On-Call Roster 1. Go to the **Configure** section of the Gateway. 2. Choose **Alarming** > **On-Call Rosters**. You can create as many rosters as you wish. 3. Click on the **Create new On-Call Roster**. You can create as many rosters as you wish. 4. On the **New On-Call Roster**, enter a **Name**, and click **Create New On-Call Roster**. 5. Now back on the On-Call Rosters page, click on the **More** button, and select **manage** from the dropdown list to the right of the roster name. The **Manage Roster** page is displayed and from here you can add one or all users from a source list, and put them in any order you wish. You can also remove users from the On-Call Roster. ![Create On-Call Roster Create From Gateway](on-call-roster-create-from-gateway.png) 6. Click on **Save**. ### To Manage the Roster from the Client Roster management can take place from a Vision Client. 1. Open your project in the **Designer** and navigate to a window the client has access to. If this is a new window, you will have to add it to yur navigation. 2. From the Component Palette, drag and drop a **Roster Management** component in your design window. ![On-Call Roster Management from Client](on-call-roster-management-from-client.png) 3. If you have more than one user source, go to the **Property Editor** and enter the one you want to be used by the roster in the **User Source** property. 4. **Save and Publish** your project. Client users can now manage the roster by re-arranging and adding/removing names to the roster. You can interact with the listed rosters by double-clicking them or selecting them and clicking on the **edit** icon in the upper right.