Part 2: Automatically validate E-mail attachments with Flow and Power BI

In Part 1 of this little series I described the core-Flow on how to automatically validate E-mail attachments with Flow and Power BI. It automatically sends an e-mail to a business partner who sent an attachment, that didn’t meet the agreed specifications:

Automatically validate e-mail attachments – Part1

But before going live with this Flow, you should consider the following aspects:

Caveats

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Writing data to GitHub using Power Query only

You shouldn’t do it …

Generally it’s a very bad idea to execute commands in Power Query that write out data to a source, as these commands might be executed multiple times (https://blog.crossjoin.co.uk/2018/10/07/power-query-write-data/)

… unless … maybe ?

However, as with most good rules, there are exceptions. I leave it to you to decide whether my use case here is a valid candidate for it. It doesn’t execute the code twice, because I execute the query only from the query editor and none of the other queries is referencing its results. But please see for yourself – Writing data to GitHub using just Power Query:

The video

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Get full Time Activity data from QuickBooks into Power BI

Problem

As per the time of writing, the native QuickBooks connector in Power BI has some shortcomings for the Time Activity-data: It will not return employee details (so you will not know who did the hours) and it will not return hours (if they haven’t been entered by start- and end-date).

Solution

But fortunately the connector has 2 functions, who can return the full data that the QBO-API has to offer. At the end of the list in the navigation pane there are the functions “Entity” and “Report”:

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Export data from Power BI to csv using Python

In this blogpost I show you my M-Python-function that I use to export data from Power BI to csv files (Export Python).

Why Python?

I prefer it to R mostly because I don’t have to create the csv-file(names) in advance before I import data to it. This is particularly important for scenarios where I want to append data to an existing file. The key for this task is NOT to use the append-option that Python offers, because M-scripts will be executed multiple times and this would create a total mess in my file. Instead I create a new file with the context to append and use the Import-from-folder method instead to stitch all csvs back together. Therefore I have to dynamically create new filenames for each import. So when the M-Python-scripts are executed repetitively here, the newly created file will just be overwritten – which doesn’t do any harm.

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