Azure Cost Management - Power Query Editor Expression.Error Cannot convert value null

[Anonymous]

Hey all,

I'm directily connected to the Azure cost management tool from my Power BI Desktop client. Everything works fine, I can and manipulate all of my data when I connect to my specified enrollment number. 

My problems begin when I try to edit the Power Query to only filter for cost information in a certain subscription account. When I try to filter down I get the following error:

"

Expression.Error: We cannot convert the value null to type Record.
Details:
Value=
Type=[Type]

"

Doing some quick googling, I saw two proposed solutions: removing all null values from my dataset, or alternatively, changing all null values to text strings to work around this issue. I've tried both, and sadly, neither works. In fact, both proposed solutions actually replicate the same error listed above.

Does anyone know how to fix this issue? Ideally I will be able to an transform my data set to filter for and select only the information I want, rather than import all of the data at once.

Thanks in advance! 

[Bahneby]

@Anonymous, I am facing the same annoying problem. Did you find any solution?

Best regards,
Johannes

[Anonymous]

Hi @Anonymous,

Can you please share some dummy data to test? It should help us to clarify these and test to troubleshoot them.

How to Get Your Question Answered Quickly 
Regards,

Xiaoxin Sheng

[Anonymous]

Hey All,

Apologies for the delayed response. I believe that there was no issue with my querie, but rather the Azure cost manager data source bugged out. Sometimes I get the aforementioned error, and sometimes, without changing one bit of code, it works perfectly fine. I wonder if it has to do with my connection. At any rate, I've nested my code in the "try otherwise" loop mentioned above. It doens't fix the error, but it makes it less annoying.

Thanks for the help

Gdurego

[Anonymous]

Hi @Anonymous,

It may be related to power bi and azure data source connection and corresponding service status.  Perhaps you can open a ticket contact to the power bi team to trace the backend status for further support.

submit a support ticket

Regards,

Xiaoxin Sheng

[Anonymous]

Hey @v-shex-msft ,

That would be much apprepciated. I can't seem to wrap my head around why this error occures so sporadically. Even when I don't have any transformation steps there are occasions where the data query returns the same error. Other times - with the same data query and the same Power BI Desktop file - it works perfectly fine.

This is my blank query that sometimes works and sometimes doesn't.

Below is how I connect to the Azure Cost Management tool. For privacy reasons, I have removed the enrollment number. In my query, I use the correct enrollment number, and input 1 for the number of months.

Thanks,

Giulio

[Anonymous]

Hi,

Did you ever get it to work? I am having the same exact problem. I get the error as soon as I navigate to the table.

[lbendlin]

encapsulate the offending Power Query statement in a "try" ... "otherwise" bubble.