Calendar Problems

How to Create a SharePoint Calendar Overlay from an Outlook-Synced Calendar

Natalie Taylor Oct 23, 2026 868 views

Question details

The user needs to display a SharePoint calendar that is synced with Outlook as an overlay on a group calendar, but it is not showing up as an available option.

How to Create a SharePoint Calendar Overlay from an Outlook-Synced Calendar

Product: Microsoft SharePoint
Device & OS: not provided
Scenario: Setting up a combined calendar view in SharePoint by overlaying an existing Outlook-synced calendar.
Observed behavior: The Outlook-synced calendar does not appear in the overlay options automatically and must be added via its specific Web URL within the same site collection.

Before you start

Ensure you have the necessary edit permissions for the SharePoint calendar view and verify that the calendar you intend to overlay belongs to the exact same site collection as your main group calendar.

Solution 1Recommended

Add the Calendar Overlay via Web URL Resolution

Manually enter the calendar address to force SharePoint to locate and overlay the synced calendar.

By default, SharePoint may not automatically list calendars from sub-sites or heavily modified synced lists in the overlay dropdown. Manually resolving the Web URL ensures the system accurately targets your specific calendar.

Access Calendars in View

Navigate to your primary SharePoint calendar. On the ribbon at the top, select the Calendar tab, then click on 'Calendars in View'.

Initiate New Calendar Overlay

On the Calendar Overlay Settings page, click the 'New Calendar' link to define the parameters for your synced calendar.

Resolve the Web URL

In the Web URL field, type or paste the exact address of the SharePoint site where the Outlook-synced calendar is hosted, and click the 'Resolve' button.

Select the Calendar and Save

Once resolved, select the specific calendar from the populated 'List' dropdown menu, choose a display color for its events, and click OK to apply the overlay.

Add the Calendar Overlay via Web URL Resolution

Site Collection Requirement: The calendar being overlaid must be located in the same site collection as the group calendar. If it is hosted on a different site collection, the 'Resolve' function will not find it.

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Frequently Asked Questions

Why does the 'Resolve' button fail to find my SharePoint calendar?

This typically occurs if the URL entered is incorrect, points directly to the calendar instead of the parent site, or if the calendar resides in a different SharePoint site collection. Ensure the URL points to the site level and belongs to the same collection.

Can I overlay a personal Outlook calendar in SharePoint?

Yes, but you must choose 'Exchange' instead of 'SharePoint' when setting up the new overlay. Enter your Exchange Web Services (EWS) URL and Outlook Web Access (OWA) URL to sync it properly.

How many calendars can I overlay on a single SharePoint view?

SharePoint allows a maximum of 10 calendar overlays per view. If you need to view more, you will need to create multiple views.

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