這個 blog 有強調欲實作這機制的前提
Only SSAS administrators can use the EffectiveUserName property, so the domain\SSASAdminUser must be an SSAS admin. The other requirement is that you must setup Kerberos on the SSAS server. To be clear, you need to setup the SPN on the SSAS server and you need to setup the AD configurations for delegation, but you don’t need to setup Kerberos on any other servers besides the SSAS server. So this is a fairly quick way to get up in running without having your whole network setup for Kerberos.