Recovering deleted data from CRM is now possible in the simplest manner with Trash Bin for SugarCRM. It can restore data from different modules that you or users delete from the system. Users can retrieve deleted data, easily from the Trash Bin for SugarCRM. It works for built-in as well as custom modules in SugarCRM.
Other add-ons of interest
OneClick Sudo Login for SugarCRM 8 / 9
Sudo Login (or Masquerade) allows Administrators to log in as any regular user without asking for their password and without disconnecting them. Specially useful for configuring their workspace (filters, reports, dashboard) or to support users (reproduce issues, help them step by step, etc).