In order to fully utilize UCI, the PPAC and the maker portal, we need to have a 100% migration of all features, which is still not the case. Most of the PPAC environment settings are still forwarding to the old Dynamics 365 web UI settings, some advanced customization features are still not available in the maker portal and you need to "switch to classic", even some of the end user areas in the first party apps are not yet available in UCI - example: the SLAs in the customer service hub.
When csn we expect a 100% migration in all the mentioned areas?