Dashboard Recovery
When you delete a user from the user list, any custom dashboard that the user created becomes non-functional with no permissions and is unable to execute properly. This impacts all associated dashboard-based reports and shares. To solve this problem, you can use the Recover option.
Recovering a non-functional dashboard reassigns ownership to the recovering user which automatically makes the custom dashboard, its shares, and related reports functional again.
To recover a non-functioning dashboard:
Duplicating a dashboard creates a new dashboard with the same capabilities as the non-functioning dashboard. However, duplication does not create the shares or the associated reports. The result is that the new dashboard operates using a deleted user's permissions (as with Recover), but you must create the shares and reports manually.
In some cases, duplicating the inactive dashboard helps you regain control over the shares and reports. However, there may be some cases when duplication would not work. You should use the Recover option to retain all existing shares and related reports instead of duplication.