If an asset is deleted from the Symantec Managment Console (right click and delete), is the information still in the database? If so, is there a way to recover that information?
You could check the following Table:
ItemDeleted
Shows deleted assets.
Random assets suddenly disappear from the Symantec Management Platform Console TECH210362 https://support.symantec.com/us/en/article.tech210362.html
Then if you have Resource History on you could check the Hist tables for that Guid.