Migration performed as part of the IM Migration effort underway, from SharePoint 2010 to SharePoint Online (M365). Wave 3 is due to happen on the weekend of September 2nd to September 6th, 2021. Countdown to Migration The Project Team will migrate your site over a weekend – from Friday night to Sunday night. Before migration starts, your SharePoint 2010 site will be converted to Read Only. Plan for you site to be in Read Only mode for 4 days – from Wednesday night to Sunday night. We will provide a message template you can use to alert your site contributors and visitors ahead of your site’s conversion to Read Only You can still view all site contents while in Read Only You will not be able to change or add content after it is converted to Read Only. If you need to work on a document, you will need to save it in a different location and then upload it to your site in SharePoint Online, after migration is complete.