How to Create a Shared Calendar in Outlook (2026)
There are two different things people mean by “shared calendar in Outlook.” One is a brand new calendar that several people manage together. The other is giving colleagues access to the calendar you already have. The steps are different, so start by picking the right one.
Create a new shared calendar in Outlook on the web
This is the cleanest option for a team calendar that is nobody’s personal schedule.
- Go to outlook.office.com and click the Calendar icon.
- In the left panel, click Add calendar.
- Choose Create blank calendar.
- Name it something specific like “Client Visits” or “On-Call Rota”, pick a color and a charm, then click Save.
The new calendar appears under My calendars. It is private until you share it, which is the next step.
Share it with your team
- Hover over the new calendar in the left panel and click the three dots.
- Click Sharing and permissions.
- Enter each person’s email address.
- Pick their permission level from the dropdown, then click Share.
Each person gets an email invitation and the calendar appears in their own Outlook once they accept.
Pick the right permission level
Outlook’s levels are more granular than most people realize, and picking the wrong one is the usual cause of “I can see it but I cannot edit it.”
- Can view when I’m busy: free/busy only, no titles or details. Good for colleagues outside your team.
- Can view titles and locations: slightly more context, still no full details.
- Can view all details: the full event, including description and attendees.
- Can edit: add, change, and delete events.
- Delegate: everything an editor can do, plus receiving meeting invitations sent to you. This is the one for an assistant.
Only the calendar owner can change permissions later, so make sure the right person creates it.
Create a shared calendar in Outlook desktop
- Open Outlook and click the Calendar icon in the lower left.
- On the Home tab, click Add Calendar, then Create New Blank Calendar.
- Choose where to save it, usually under your mailbox’s Calendar folder, then click OK.
- Right-click the new calendar, click Properties, then the Permissions tab.
- Click Add, choose people from the address book, and set a permission level for each.
The desktop permission names differ from the web ones. Reviewer is read-only, Author can create and edit their own items, and Editor can change anything.
When a Microsoft 365 Group is the better answer
If the team already has, or needs, a shared mailbox and a shared file library, create a Microsoft 365 Group instead. Every group gets a group calendar automatically, membership is managed in one place, and new joiners get access without anyone re-sharing anything.
The tradeoff is that a group calendar is tied to the group’s membership rather than to individual permissions, so you get less granular control. We cover that route in how to create a group calendar in Outlook.
If you are on the receiving end and just need to open something a colleague already shared, see how to open a shared calendar in Outlook.
When it will not work
- The Share button is missing. You are probably not the calendar owner. Only the owner can share.
- External recipients see nothing. Your Microsoft 365 admin may block external sharing. That is a tenant policy, not a client setting.
- The calendar never appears for them. They have to accept the invitation. Ask them to check spam.
- Permissions look right but editing fails. Desktop and web use different permission names. Set it in one place and verify in the other.
The limit of a shared calendar
A shared calendar answers “what is on the team’s schedule.” It does not answer “when can all of us actually meet”, because that requires reading everyone’s other calendars too, including the personal ones nobody is going to share.
Carly works the other way around. It reads across every calendar each person connects and offers only the slots where everyone is genuinely free, without anyone exposing their event titles. You share a booking page or a group poll instead of a calendar, and you get unlimited booking pages and connected calendars.
For a team, the admin setup lets colleagues share agents and connections, so Claire and Michael can both hand scheduling to the same assistant. Carly connects to thousands of apps, so a booked meeting can also fire a workflow that updates your CRM or files the notes. Free Zapier-style workflows; AI agents from $35/month.
FAQ
What is the difference between a shared calendar and a group calendar in Outlook?
A shared calendar is one you own and grant others permission to. A group calendar belongs to a Microsoft 365 Group and follows that group’s membership automatically. Use a shared calendar when you want per-person control, and a group calendar when the team already exists as a group.
Can I create a shared calendar without an admin?
Yes for a personal shared calendar, which any user can create and share. Creating a Microsoft 365 Group may be restricted depending on your tenant’s policy.
Can people outside my organization use a shared Outlook calendar?
Only if your admin allows external sharing, and external users typically get free/busy rather than full details. To share availability with anyone regardless of tenant, send a booking link.
How many people can I share an Outlook calendar with?
There is no small fixed limit for normal use, but very large permission lists get slow and hard to audit. Past a certain size, a Microsoft 365 Group is easier to manage.
Can my assistant manage my calendar?
Yes. Give them Delegate access, which lets them edit events and receive meeting invitations sent to you. Carly can do the same job automatically, booking and rescheduling from your real calendar.
Ready to automate your busywork?
Carly schedules, researches, and briefs you—so you can focus on what matters.
See what people say
"Before Carly, I relied on a Calendly link, but the whole process felt impersonal and not very professional. Carly changed that by handling all the back-and-forth, so I'm no longer stuck in endless email threads trying to line up schedules.
Now Carly reaches out to candidates, shares my real-time availability, lets them pick a slot, then sends a Zoom link and drops it straight into my calendar. She sends reminders to both of us before each call, which has significantly reduced no-shows and last-minute confusion.
On top of scheduling, Carly acts like a full executive assistant, sending me my schedule the night before so I can prepare for each call. It reminds me of the old x.ai assistant, but Carly is noticeably smarter, faster, and better suited to my healthcare recruitment business."
