I have configured the site collection audit settings to monitor permission changes. In the Audit log reports->Security settings I get an excel report with Security Group Member Delete events.

The event data looks like: 645554

How do I determine what the username of the user 554 is?


1 Answer 1


Assuming that you are using SharePoint 2013, the following REST api query will do the job: http://siteUrl/_api/web/getuserbyid(554)

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