When you delete a tenant that contains some assets, all its assets stop sending telemetry to MDR solution. Before deleting a tenant, move all its assets to the root tenant or a new tenant.
Your account in Kaspersky Security Center Web Console or Kaspersky Security Center Cloud Console must have a role with the following access rights: Incident access and Tenant management, and the ability to view, add, edit, and delete tenants in the MDR section in Kaspersky Security Center.
To move assets to a new tenant:
In the MDR section of Kaspersky Security Center, create a new tenant. Later, you will add assets to this tenant.
When you create a new tenant, you download an MDR configuration file.