Join us at FabCon Atlanta from March 16 - 20, 2026, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.
Register now!The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now! Learn more
Hello everyone, I want to combine data from folder, each workbook in folder have worksheets same structure. But when I'm combine and transform, there's one field display "null" except the data in file, which I was choose sample file, other fields are Ok. I don't know how to solve this problem. Please help me.
Sorry for my grammar, i'm not good at English. Thanks!
Hi @DucPM ,
If nothing has changed in formatting, you probably have nulls in your data source, you may investigating there. You can view previous steps in Applied Steps to check which one caused a null value.
Or there's a similar post for your reference:
Solved: Power Query combining NULL values - Power Platform Community (microsoft.com)
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.
Please provide sample data that covers your issue or question completely, in a usable format (not as a screenshot).
https://community.fabric.microsoft.com/t5/Community-Blog/How-to-provide-sample-data-in-the-Power-BI-...
Please show the expected outcome based on the sample data you provided.
https://community.fabric.microsoft.com/t5/Desktop/How-to-Get-Your-Question-Answered-Quickly/m-p/1447...
The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now!
Check out the November 2025 Power BI update to learn about new features.
| User | Count |
|---|---|
| 10 | |
| 6 | |
| 5 | |
| 5 | |
| 2 |