Power Automate approval comments can be retrieved from an approval action and copied into a SharePoint list or document library. The comments are stored in an array due to multiple potential approvers. To write the comments back to SharePoint, the array of comments needs to be converted into multiple lines of text. This can be done by using the "Compose" action and the "Apply To Each" action in Power Automate. The converted comments can then be added to the SharePoint document library using the "SharePoint - Update File Properties" action. To test the flow, a new file can be placed into the SharePoint document library and the approval process can be completed.
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