T5013 Auto-fill

According to the CRA T5013 information can be delivered by auto-fill my return. However, when I do autofill it doesn’t show up even though the CRA had a copy of the slips when I log in and look at the clients slips.

Any ideas why?

Yep - as in the past, not much actually transfers. Sometimes the name and ID info but very little else (at least in my experience).