Showing results for 
Search instead for 
Did you mean: 
Helper IV
Helper IV

Error: We couldn't fold the expression to the data source. Please try a simpler expression



I'm using the Microsoft CDQ Connector with PowerQuery and whenever I add measures I randomly get this error message: 


I'm not using complex expressions... just filtering and basic operators. 

This is starting to heavily affect my work. Is there a workaround that I can use? I'd rather not roll back to a previous version of Power BI. Any suggestion is welcome! 


Thanks in advance! 

Super User
Super User

It looks like you are using direct query. Can you use import mode? Direct Query has some limitations on what DAX you can do, and you are hitting quite a few of them. 


See this article on Direct Query.


Did I answer your question? Mark my post as a solution!
Did my answers help arrive at a solution? Give it a kudos by clicking the Thumbs Up!

DAX is for Analysis. Power Query is for Data Modeling

Proud to be a Super User!

MCSA: BI Reporting

Hi, Unfortunately I cannot use Import mode. I'm working on a large set of data. 
I found that aggregators don't work well, so I'm pretty much going around it by counting and filtering. 


I managed to recalculate most of what I need... still in the weeds for some of them, but I'm figuring it out! 



Helpful resources

November 2022 Update

Check it Out!

Click here to read more about the November 2022 updates!

Microsoft 365 Conference â__ December 6-8, 2022

Microsoft 365 Conference - 06-08 December

Join us in Las Vegas to experience community, incredible learning opportunities, and connections that will help grow skills, know-how, and more.

Power BI Dev Camp Session 27

Ted's Dev Camp

This session walks through creating a new Azure AD B2C tenant and configuring it with user flows and custom policies.

Top Solution Authors