How to Label Sites in Microsoft 365
I can’t tell you how many times I’ve been asked by customers if we can help them apply sensitivity labels at scale to data at rest in SharePoint Online. Unfortunately, I’ve had to tell them that there’s really only one option, and it’s not pretty. To date, there is no API that allow an end user to apply a sensitivity label directly to a file in a SharePoint Online site, so the only real option is to download the file locally, apply the label and then upload the file.