Hi Jennifer,   I also having the same issue described above. I am unable to open a support ticket as the option is disabled with message "Opening a case requires entitlement"Does this means I don't have enough permissions on this instance? Could this be the root cause of not getting "Advanced Delive...

I am also having the same issue. "Advance Delivery Options" window open as expected when log in under a different account for a different client instance. Also, I can confirm the option worked on 10/04/2022.