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When you try to create a calendar overlay in Microsoft SharePoint Online by using a calendar from a SharePoint Online subsite, you receive the following error message:
Sorry, something went wrong
An unexpected error has occurred.
To fix this issue, remove the ampersand (&) from the site that contains the calendar from which you want to create the calendar overlay. To do this, follow these steps:
Note
https://contoso.sharepoint.com/web1/_layouts/15/prjsetng.aspx
(where "contoso" is your website).This issue occurs when the site that contains the calendar that you're creating the calendar overlay from contains an ampersand (&) in the URL.
Still need help? Go to SharePoint Community.
Events
Microsoft 365 Community Conference
May 6, 2 PM - May 9, 12 AM
Skill up for the era of AI at the ultimate community-led Microsoft 365 event, May 6-8 in Las Vegas.
Learn moreTraining
Learning path
Integrate SharePoint and Power Automate - Training
Learn how SharePoint and Power Automate are integrated.