Deployment Calendar

To give someone access (Full or Regular) to the Deployment Calendar, you need to go to Exchange Admin Center

1. Give yourself the Exchange Administrator role in PIM
2. Go to Classic Exchange Admin center on the bottom left of the 365 admin center (need to click Show More)
3. Search for "Deployment Calendar"
4. Double click and select "Mailbox Delegation"
5. Add them to the corresponding groups