The dreaded App@SharePoint user name problem

Hey TonyRedmond,

Here's another juicy bit information, though I'd take with a grain of salt, as I've gathered some additional information on how this error is related to the new and old Delve entry points, see this thread: https://techcommunity.microsoft.com/t5/Delve/Anyone-also-seeing-app-sharepoint-com-in-Delve/m-p/34684/highlight/false#M209

Here's the latest support response: 

Please know that I received updates from the Production Group, that specify the following:

“This is one System account, that normally is used when the customer sets up, one App, and provides that App a high level permission to run on the SharePoint Site. In this particular case, an App was probably created, or set up, or even for example a workflow and was given an Elevated Permission, on the SharePoint Site, and because of that, the account is shown as the last one that modified the documents. So the customer needs to look for all Apps he has on SharePoint, and see which one has this high level permission. This can be the reason that this account is showing up.”

In my case I don't have any additional apps allowed for the documents affected on that site, so I'm sure the statement is inaccurate.