- In the admin center, go to Settings > Org Settings.
- On the Services tab, select Calendar.
- On the Calendar page, choose whether you want to let users share their calendars with people outside of your organization who have Microsoft 365 or Exchange.
Keeping this in view, why can't I share my calendar in Outlook 365?
According to Microsoft Office Support, there may be several reasons why you are unable to share your Outlook Calendar: You are trying to share with an email address outside your business organization. You are trying to give permission to an invalid email address. You are trying to give permission to an Office365 group.
One may also ask, how do I make my office 365 calendar public? How to use Office 365 shared calendar outside your organization
- Right click the calendar you want to share.
- Click "Permissions"
- Change "Public Calendar" permissions to "Availability only" and click save.
- Right click the calendar again, and select "Share Calendar"
- Add the email of the external person you want to share with.
Considering this, how do I share my office 365 calendar with others?
To share your calendar
- Select Calendar.
- Select Home > Share Calendar.
- In the email that opens, type the name of the person in your organization that you want to share your calendar with in the To box.
- The person in your organization receives the sharing invitation in email, and then select Open this calendar.
How do I give calendar permissions in Office 365 admin?
In the Office 365 admin center, you will:
- Under External Sharing, select Calendar.
- Ensure that the box is checked for Let people in your organization use a public URL to share their calendars, and also ensure that the box is checked for Share calendar via web link for anonymous users.