You can check the status of a purge job from the Monitor > Job Management view.
To configure the purge schedule
Go to Settings > General.
In the General view, on the left panel, click Data Purge > Purge Settings.
On the Stale Data tab, select one of the following schedule options:
Select this option to run the job immediately after you click Schedule Job.
Select this option to run the job on a specified date and time.
Provide the following information:
Select the date and time to run the evaluation job.
Select this option to run the job one time on the specified date and time.
Select this option to specify how often (in days) the scheduled purge job runs.
Click Apply to apply the selected schedule options.
If you run the purge job while a reporting synchronization job is running, then the purge job fails. If a reporting synchronization job is running, then you must run the purge job only after the synchronization job is complete.