Campaign cleanup
This page explains when certain campaigns are deleted.
There is a system configuration that ensures that the maximum count of inactive campaigns (deleted, failed, aborted, success, and closed) is 5 or less. If there are more than 5 campaigns, the excess will be cleaned-up. The oldest inactive campaign would be deleted before the rest.
“In Progress” campaigns will be cleaned up after 90 days, irrespective of its state at that point of time.