In specified intervals, Integromat checks whether there are followers who do not follow your Twitter account anymore. If so, they are deleted from the data store where the followers are stored. You can connect other modules, for example Slack, to send a notification about followers who unfollowed your Twitter account. This scenario assist to [this scenario](https://www.integromat.com/en/integration/3218-save-new-followers-from-twitter-to-data-store) in keeping the database of followers up to date.
This is a predefined template that will make the creation of your scenario much easier. Of course, you can always expand and customize the scenario to meet your own individual needs.