From testing litigation hold:
1 - if you create a case with litigation hold selected:
If you perform a search, but do NOT review the results, items can be deleted and expiry will delete old items.
Items reviewed as not relevant can be deleted.
Items reviewed as relevant cannot be deleted.
My question(s)
I know other marks can be created, however. . .
Can you create marks that prevent the deletion or expiration of reviewed items? (say an HR mark as 'containing bad language, or SEC violates restriction)
If so, how? I know how to create marks, but see no method of determining which ones prevent deletion.