Keep Bib Information for Deleted Records (for Reading History)
Unlike Polaris, when a record is deleted in Sierra, all information is deleted from the system. Unfortunately, this means that Sierra libraries would not be able to take advantage of the Vega Enhancement to "Display Deleted Titles in Reading History." Thus patrons only see "Resource is not available" in their Reading History.
Patrons opt in to keep their reading history assuming that the data will be there when they look for it. They don't understand why there is no record of it, think something is broken with the system.