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

Power BI is turning 10! Let’s celebrate together with dataviz contests, interactive sessions, and giveaways. Register now.

Reply
richard-powerbi
Post Patron
Post Patron

Dataflow should be considered as preview?

I have so many issues with Dataflow:

  • Extremely slow refresh
  • Diagram view containing already removed sources (forgiven because it's preview)
  • Entities with wrong datatype after a perfectly fine written query
  • M code commented out code disappearing after saving (watch out guys!)
  • Read about many more issues in this forum 

I mean, I just started with Dataflow, and I'm already running into a lot of trouble. The commented out code disappearing could really ruin one's day.

 

I have found that by recreating the Dataflow by exporting and importing Json fixes some of these problems.

Be sure to backup query code in notepad just in case!

image.png

image.png

1 REPLY 1
jeffshieldsdev
Solution Sage
Solution Sage

Microsoft offically GA'd dataflows in April I think, it was in Preview before that--so it's not in Preview now.

 

That being said, I've noticed some of these issues too.

 

For Premium users, Enhanced Dataflows Compute Engine *IS* in Preview, so I wouldn't rely on that in a production environment.

Helpful resources

Announcements
June 2025 Power BI Update Carousel

Power BI Monthly Update - June 2025

Check out the June 2025 Power BI update to learn about new features.

June 2025 community update carousel

Fabric Community Update - June 2025

Find out what's new and trending in the Fabric community.