Get certified for free when you join Fabric Data Days 2026 and dive into Fabric, Power BI, SQL, AI, and other essential data skills.
Join nowJuly 28 - August 9 | Final Round of the Power BI Dataviz World Championships. This is your chance. Learn more
Hi everybody,
I'm having a problem when I try to refresh my scorecard, it says this message:
"Column "Project ID" in Table "Project Updates" contains a duplicate value "6" and this is not allowed for columns on the one side of a many-to-one relationship or for columns that are used as the primary key of a table"
I don't know what this means, so if someone does, it would be really useful for me 🙂
Thanks
Hello rodriguma,
Did you ever find a solution to this issue? We are running into a similar roadblock and have been unable to find anyone with answers.
Thank you.
I assume you don't have any duplicate values in that column and this error only occurs when you refresh data. Right?
I haven't reproduce your issue. But I have seen posts abouth similar issue before:
http://community.powerbi.com/t5/Desktop/Duplicates-phantoms-in-Power-BI/m-p/120252#M50807
It seems Query Editor may create duplicate rows when refresh fails. I suggest you recreate your dataset and try again.
Regards,
Join us in Barcelona for FabCon and SQLCon, the Fabric, Power BI, SQL, and AI community event. Save €200 with code FABCMTY200.
If you love stickers, then you will definitely want to check out our community sticker challenge, Barcelona edition!
Check out the July 2026 Power BI update to learn about new features.
| User | Count |
|---|---|
| 30 | |
| 28 | |
| 23 | |
| 21 | |
| 19 |
| User | Count |
|---|---|
| 44 | |
| 32 | |
| 18 | |
| 17 | |
| 17 |