Navigate to Administration -> Storage -> Retention Policies to add one or more retention policies.
You can create more than one retention policies. For example, one group of users will have retention period 3 years, while other groups will have retention period 7 years.
Click on "New Job" to create a retention policy job.
Inside the job settings you can specify the filtering criteria, for example, delete recording that are older than 180 days, limit to a particular group of users, etc.
Retention job may be started manually or automatically by schedule.
Results of a retention job execution are displayed on the job page.