Microsoft List - Add Comment
Want to automatically add comments to Microsoft List items using Power Automate? In this post, I’ll show you how to use the SharePoint REST API to both post a comment and read ALL comments on a list item — including how to handle the tricky mentions array. Surprisingly, adding a comment is a single action, reading all comments into a convenient format when there is tagging involved, is rather complex as tagging is handled by a separate array. The SharePoint REST API is well documented here as are the Microsoft List comment features, like the ability to tag and therefore trigger an email, notifying the user of a mention in a list comment. The email is a feature of Microsoft Lists and therefore does not depend on a Flow. If you create a comment on a list item and tag a colleague, they will be emailed with a link direct to the associated item. ...