You can use the deployment wizard to configure how long the data is to be stored in the database.
Event purging is carried out automatically by the Database cleanup workflow. This workflow purges the events received and stored on the execution instances and events archived on a control instance.
Use the arrows as appropriate to change the purge settings.
Event purge settings on a control instance:
Event purge settings on an execution instance:
For more on the database cleanup workflow, refer to this section.