hi,
You can configure automatica delete setting
Configure SEPM to remove clients which have not connected within a specific number of days.
- Open SEPM and select the Admin panel.
- Click on Servers
- Right click on the Site where your management servers are located and choose Edit Properties
- Check "Delete Clients that have not connected for __ Days"
- Enter a value for Days.
- Click OK.
NOTE: In version 12.1 of the SEPM, the location for adjusting the setting to delete clients which have not connected for X number of days has moved:
- In the SEPM, go to the Admin page.
- Select Domains.
- Under Tasks, select Edit Domain Properties.
- In the Edit Domain Properties window, on the default General tab, note the option to "Delete clients that have not connected for specified time."
Configuring a low value for this setting would clear up the duplicates more quickly