Microsoft Fabric Community Conference 2025, March 31 - April 2, Las Vegas, Nevada. Use code MSCUST for a $150 discount.
Register nowThe Power BI DataViz World Championships are on! With four chances to enter, you could win a spot in the LIVE Grand Finale in Las Vegas. Show off your skills.
Hi there,
I am using two dataflow data sources (A1&A2) in a second dataflow (B), where using A1 to filter A2 as part of transformation , it produced prelonged and buggy result in terms of saving the second dataflow and refreshing turnover. However if I change A1 to the original direct datasource (which is sharepoint Online) , it produces much faster and stabler result. Does anyone know if it's an exisiting issue with how dataflow engine works or is there any remedical approach i can adopt?
I prefer using one orignal data source in one dataflow, and using dataflow as the data sources in the following dataflow, which is easier to control source data.
Thanks in advance.
Hi @VeraInSydney ,
Could you please provide more details about your error message and prelonged result? What is the datasource of A2?
Besides, here are some Documents about Dataflow. Please check if these could help you a little.
Dataflows best practices - Power BI | Microsoft Learn
Optimize Power Query when expanding table columns - Power Query | Microsoft Learn
Best Regards,
Jianbo Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.