You can cancel the Data Mart jobs using Eagle's Automation Center.

To cancel a Data Mart job in Automation Center:

1. From any Eagle window, click the Eagle Navigator button to access the Eagle Navigator.

2. In Automation Desk, in the left navigation pane, click Monitor > Jobs/Events.
   You see the Monitor Workspace.

3. In the Event Type list, select Datamart Manager Engine and click Search.
   You see all the jobs specific to Data Mart.

4. Highlight the job you want to clear and click Cancel on the ribbon. Otherwise, right-click on the job and click Cancel