The property value is invalid. The value can't contain leading or trailing whitespace.
Go back to the SharePoint site for now.
- Click the gear icon for the Settings menu, and then click Site settings.
- In the Look and Feel section, click Title, description, and logo.
- In the Title section, edit the site title to remove the leading or trailing spaces from the ampersand (&). Click OK.
- Browse back to the site mailbox and allow for provisioning of the mailbox to complete.
Article ID: 2934900 - Last Review: 29 Dec 2016 - Revision: 1