As a Power Query fan I’m naturally interested in Copilot in Dataflows Gen2. But since Power Query is already very easy to use and since I’m pretty experienced at using it, can Copilot really do ...

One of the most common errors you’ll see when working with Power Query in Power BI or Excel is this: It can occur with almost any data source and in a wide variety of different circumstances, and for ...

One very common requirement when creating a Power BI report is the ability to apply a filter for the current day, week, month, quarter or year. There are several ways of implementing this: you could ...

The Web.Contents() function in M is the key to getting data from web pages and web services, and has a number of useful – but badly documented – options that make it easier to construct urls for your ...

Recently I had a request for help from someone who wanted to do the following in Power Query: take a piece of text and then, using a table, search for all of the occurrences of the words in one column ...

There are a lot of articles and blog posts out there on how to handle OAuth2 authentication when connecting to REST APIs from Power Query in Power BI. However there is also a lot of confusion and ...

A long time ago someone – probably from the Power Query dev team – told me that adding primary keys to M tables could improve the performance of certain transformations in Power BI and Excel Power ...

In my recent post on web services in Power Query I mentioned that while the Power Query Web.Contents() function generates a GET request by default, you can make it generate a POST request by ...

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 ...

If you’re interested in performance-tuning a Power Query query, you’re going to need a reliable way of telling how long your query takes to run. It’s not as easy as it seems to adapt your query to do ...

I don’t usually like to blog about topics that I think other people have blogged about already, but despite the fact that Mosha blogged about this several years ago (in fact more than eight years ago, ...