We manage all our users/licensing through AD integration. If an employee leaves and I'm not notified promptly, IT deletes their AD account and any sheets etc. they own become 'orphaned'. They still exist and can be viewed, but are locked and you get error messages that the owner is not part of our organization. I can manually create a dummy user through the Smartsheet Admin UI with the same email address and the sheets become more functional, but I still can't take ownership (even as a sheet/workspace admin). For security/audit reasons, creating a dummy user in AD is not a popular option at my company, so I'd really like a way to force the ownership transfer.
BONUS POINTS on the product roadmap. As an enterprise customer, I'd LOVE more control over how my email domain can be managed. I feel I (Account Admin) should be able to access any object tied to the registered domain/s of my enterprise account, and I'd love to be able to block unauthorized account creation using our emails. My security team would buy you dinner.