Data Privacy Settings In Power BI/Power Query, Part 3: The Formula.Firewall Error

In the first two parts of this series (see here and here) I showed how Power BI/Power Query/Excel Get & Transform’s data privacy settings can influence whether query folding takes place or even whether a query is able to run or not. In this post I’m going to talk about the situations where, whatever data … Continue reading Data Privacy Settings In Power BI/Power Query, Part 3: The Formula.Firewall Error

Data Privacy Settings In Power BI/Power Query, Part 4: Disabling Data Privacy Checks

So far in this series (click here for part 1), I have shown how changing the data privacy settings for a data source can affect the performance of queries and even prevent them from executing completely. What I haven’t mentioned yet is that you also have the option of disabling data privacy checks completely in … Continue reading Data Privacy Settings In Power BI/Power Query, Part 4: Disabling Data Privacy Checks

Data Privacy Settings In Power BI/Power Query, Part 1: Performance Implications

One of the most confusing, under-documented and widely-misunderstood features of Power BI and Power Query (or Excel “Get & Transform” or whatever you want to call it) are the data privacy settings. I get caught out by them all the time, so I thought it would be a good idea to write a series of … Continue reading Data Privacy Settings In Power BI/Power Query, Part 1: Performance Implications

Data Privacy Settings In Power BI/Power Query, Part 2: Preventing Query Execution

In part 1 of this series I showed how the data privacy settings in Excel Power Query/Get & Transform and Power BI could impact the performance of your queries. In this post I’m going to show you how they can stop a query from running at all. Let’s say you have the Excel workbook from … Continue reading Data Privacy Settings In Power BI/Power Query, Part 2: Preventing Query Execution

Data Privacy Settings In Power BI/Power Query, Part 5: The Inheritance Of Data Privacy Settings And The None Data Privacy Level

Something I didn’t understand at all when I started writing this series was how the “None” data privacy level worked. Now, however, the ever- helpful Curt Hagenlocher of the Power Query dev team has explained it to me and in this post I’ll demonstrate how it behaves and show how data privacy levels can be … Continue reading Data Privacy Settings In Power BI/Power Query, Part 5: The Inheritance Of Data Privacy Settings And The None Data Privacy Level