A custom search will currently retrieve requests “Delivered to Web” that HAVE been viewed, but not those that have haven’t. Being able to quickly retrieve a list of those not viewed and highlighting those delivered more than 3 days earlier would facilitate sending a customized reminder notification while the PDFs would still be useful to patrons. The reminders could be sent once or twice per week.

Alternately, modifying the Electronic Delivery Reminder Server addon with an option to send the reminder x times per week (rather than each day after the first reminder is sent) could achieve the same results by choosing 27 days before requests removed from server, for example, if PDFs remain on the server 30 days.