Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Learn from the best! Meet the four finalists headed to the FINALS of the Power BI Dataviz World Championships! Register now

Reply
INJAMOV
Regular Visitor

Unable to run python script

""Formula.Firewall: Query '442_SOD_EmployeeTime (15)' (step 'Run Python script') is accessing data sources that have privacy levels which cannot be used together. Please rebuild this data combination.""

 

Above error message is coming while running python script in transform data tab

1 ACCEPTED SOLUTION
Anonymous
Not applicable

Hi @INJAMOV ,

 

The Formula.Firewall error is the result of Power Query’s Data Privacy Firewall (aka the Firewall).

Please check the official document

Behind the scenes of the Data Privacy Firewall - Power Query | Microsoft Docs

The document explains the reason and an example of the solution process.

 

Best Regards,

Stephen Tao

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

2 REPLIES 2
Anonymous
Not applicable

Hi @INJAMOV ,

 

The Formula.Firewall error is the result of Power Query’s Data Privacy Firewall (aka the Firewall).

Please check the official document

Behind the scenes of the Data Privacy Firewall - Power Query | Microsoft Docs

The document explains the reason and an example of the solution process.

 

Best Regards,

Stephen Tao

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

lbendlin
Super User
Super User

There are lots of resources available that teach you how to work with the formula firewall.  Put your offending code in the same partition as the other source.

 

Chris Webb's BI Blog: formula firewall Chris Webb's BI Blog (crossjoin.co.uk)

Helpful resources

Announcements
Join our Fabric User Panel

Join our Fabric User Panel

Share feedback directly with Fabric product managers, participate in targeted research studies and influence the Fabric roadmap.

February Power BI Update Carousel

Power BI Monthly Update - February 2026

Check out the February 2026 Power BI update to learn about new features.

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.