While writing my Microsoft Business Applications Summit session on Power Query-related reasons for Power BI dataset refresh failures (which you can watch online here for free, along with all the other sessions), I remembered something important that I have been meaning to blog about for a while. It’s an excellent article by Ehren von Lehe of the Power Query dev team that contains the first fully detailed explanation of how the Power Query Formula Firewall and data privacy settings actually work. Called “Behind the scenes of the Data Privacy Firewall” you can read it on the Power Query MSDN forum here:
It’s a must-read for any Power Query fan, and it answers a number of the questions I raised in my series of blog posts on the data privacy settings here.
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