Record Delete History
You can track the delete history of Responses, Categories, or Tags by using the Record Delete History object.
To view the Record Delete History
Go to the App Launcher.
Search and select the Record Delete History object.
You will see a list of deleted records on the list view.
(Note: If it has not already been added as a new Custom tab in Salesforce, System Admin can add it using these steps. To learn how to create a custom tab, click here.)
You should consider the following points while deleting the Responses, Categories or Tags from the Response Library tab:
If you delete a Response, the system removes the main Response as well as related Response Versions; however, it creates an entry (Response Deleted) in the Record Delete History object only for the Response.
If you delete a Category or Tag from the Response, the system creates a new entry (Response Category Deleted or Response Tag Deleted) in the Record Delete History object.
If you delete a Category or Tag from the Response Library > Categories/Tags tab, the system creates a number of new entries (Category Deleted or Tag Deleted) based on how many Responses are associated with the appropriate Category or Tag.

Click to enlarge
Refer to the following table to see the field level description for the Response and Category/Tag details:
Field Label | Response Details | Category/Tag Details |
---|---|---|
Object Name | Response | Response Category/Response Tag /Category/Tag |
Record ID | Displays the ID of the deleted record. | Displays the ID of the deleted record. |
Record Name | Response Name | Response Category/Response Tag /Category/Tag Name |
Reason | Displays information about whether the Response or Response Version is deleted. | Displays information about whether the Category/Tag is removed from the associated Response or the Category/Tag record is deleted completely. |
Parent ID | This ID displays if any related record is deleted. The deleted record ID is stored as the Response ID and is used to identify the records that were deleted from the specific parent record. | This is a Response ID to which the Category/Tag is associated with. |
Details | Displays any extra information if required. | Displays any extra information if required. |

Click to enlarge
For a deleted Response/Response Version, the Index Status changes from In Progress to Completed, and for a deleted Response Category/Response Tag, Category or Tag, the Index Status changes to Not Started in Record Delete History.