On the Home page you can use the application in simulation mode where you will get an indication on the amount of data it could potentially free. I recommend running it in simulation mode once before executing the real cleanup.

The one click cleanup has the following steps:

1. Delete all logs
2. Delete old e-space versions via OutSystems DBCleaner API
3. Clear binary payload of deleted e-space versions. (As you know OutSystems never really deletes a module, all associated e-spaces still linger in your environment taking up space). This solves the problem efficiently however it still does not remove the e-spaces since that is prohibited by the Platform.
4. Delete terminated old instances of business processes.
5. Delete old e-mails and their attachments.

You can execute any of the steps manually; besides the application provide an extra screen to remove delete entities or deleted attributes.

I hope you enjoy this application, please give feedback on how to improve it!