Likely near the end of this year (October?), Microsoft will make the new Unified Interface mandatory on all Dynamics 365 Online instances. Until then, we can choose between this new UI and the Classic Web Interface. Here are the steps to do that:
- In the instance under Settings > Administration > System Settings > Set Use the new Unified Interface to "Yes" or "No" (NOTE: this may not be available in newer D365 versions):
- Next go to https://admin.powerplatform.microsoft.com/environments and find your environment, click the "..." beside it and choose Settings:
- Then choose Behaviour under Product, and turn on or off the Use Unified Interface Only button:
Now if you go back into the D365 instance, it should display the Classic Web Interface or the new Unified Interface depending on how you set it up.