Hi Tessa,
"Delete Date/Time" can be found in the data source Last Copy Delete Time - it may be in other sources also, but I don't know. I've been working on reviewing the sources, and my notes for this source is "Lists bib record ids with the date the last copy was deleted. NOTES: appears to only list bibs that were not also deleted. We use the library setting "Retain empty bib records / Retain a bib record even when all attached copies are deleted = False"; maybe useful to find some empty records? More testing needed." FWIW, my complete data sources review notes are viewable here:
https://docs.google.com/document/d/1uCtW5IRatODwhOJJvPMeVxb35h63TuNzifUZoFn0NH8/edit?usp=sharing. We are running Evergreen 3.12.
More specifically for counting deleted copies, we run a monthly recurring report using the Item data source, filtering by Item > Is Deleted = True and Item > Last Edit Date/Time = Year + Month (plus the owning library and stats cats). Our libraries have been using this report for years, and the numbers seem to align with other counts/staff expectations. Here are screenshots of the template:
Display fields
Filters
I hope this helps!
Lindsay
Lindsay StrattonIntegrated Library System Administrator / Systems Librarian
Westchester Library System
570 Taxter Rd., 4th Floor
Elmsford, NY 10523