The Tags & Notes feature of SharePoint in Microsoft 365 has been retired. You can no longer create new tags and notes or access existing ones. The retirement of this feature resulted in the following changes.

Item Description of change Tags & Notes button on ribbon Still visible but disabled. Note Board and Tag Cloud web parts in the web part gallery Still visible and enabled. The web parts will show up as blank when added to a page. Note Board and Tag Cloud web parts embedded in a page Page will display a blank space in the area previously occupied by the web parts. Edit the page to remove the web parts. Social tags Social tags will no longer appear in the tags refiner. The refiner will still display hashtags. Tags and notes listed on personal sites The area that previously listed tags and notes will be blank.