The end user's email addresses are already in Master Library. When an asset passes its due date, the system can start sending daily emails to the end user to remind them to return the asset. This benefits the people who are paying for Master Library.
Hi George! Thank you for this idea submission. We already have this idea in the portal here - https://mlworkorders.ideas.aha.io/ideas/MLW-I-6
So I am going to merge this idea to the linked idea in my comment. I have proxy voted on your behalf to that idea, but please vote/subscribe to that idea to stay up to date with status changes on the idea!
This is a priority on our roadmap.