Campaigns >> Campaigns. You will see the each campaign listed. In the third column of data, you'll find a colored circle and the following statuses:
Active (green): The Campaign is actively Running
Displayed on the Platform:
Draft (blue): The Campaign is saved in an editable status. It hasn't run.
Displayed on the Platform:
Inactive: The Campaign was stopped from running, before or in the middle of running.
Processed (grey): The Campaign has completed it's run.