We are using Dynamics 365 for Sales/Customer Service since the days where it’s called Dynamics CRM Online. In the recent year he have to open a lot of support cases. Usually the first question from Microsoft Support is if the problem also occurs also on InPrivate-Mode (starts with empty cookies list) or with cleared clear cookies and cache. The problem occurs especially, but not only after updates: - Pages not loading or slow performance - Strange error messages - Strange page layouts - Outlook App Integration depends on IE Cookies and Cache (Recently we have the "Client loader timed out after 60 seconds" error) I don’t know any other Web Solution (from Microsoft like Office 365, Dynamics 365 Business Central, Azure, or any other vendor) the causes so much problems, which can the resolved with clearing the browser cookies and cache. And I would at least expect that after Updates a handling of the cookies.