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!Learn from the best! Meet the four finalists headed to the FINALS of the Power BI Dataviz World Championships! Register now
Hi.
I am new to PowerBI and facing problem in my refresh data. I am using Odata feed as s source. I published my data and added all security keys etc . Data refresh on daily basis for my dashboard was working perfectly more than a week but today it doesnot refreshed I got this error. I didnot modify my data source then why this error. Trying to resolve but didnot understand . If someone can help me .Really big Thanks .
Solved! Go to Solution.
Hi @SaKhan ,
It looks like you’re encountering an error related to a duplicate value in the ‘EffortVariance’ column of your ‘Plan_Project’ table. This issue can occur if a column that is part of a many-to-one relationship or a primary key contains duplicate values.
Ensure that the ‘EffortVariance’ column does not contain duplicate values in your Plan_Project table.
Hi @SaKhan ,
Did @Bibiano_Geraldo reply solve your problem? If so, please mark it as the correct solution, and point out if the problem persists.
Best regards,
Adamk Kong
Hi @SaKhan ,
Did @Bibiano_Geraldo reply solve your problem? If so, please mark it as the correct solution, and point out if the problem persists.
Best regards,
Adamk Kong
Hi @SaKhan ,
It looks like you’re encountering an error related to a duplicate value in the ‘EffortVariance’ column of your ‘Plan_Project’ table. This issue can occur if a column that is part of a many-to-one relationship or a primary key contains duplicate values.
Ensure that the ‘EffortVariance’ column does not contain duplicate values in your Plan_Project table.
in your data model, you have table called "Plan_project" and has an one to many realtionship with other table on column "Effort Variance".
as per data model, you can not have duplicated value in column , if it has been used in one to many raltionship. so please update the relationship to many to many or remove duplicated from data
Remove duplicates from excel sheet
That would work 🙂
Share feedback directly with Fabric product managers, participate in targeted research studies and influence the Fabric roadmap.
Check out the February 2026 Power BI update to learn about new features.
| User | Count |
|---|---|
| 62 | |
| 55 | |
| 39 | |
| 16 | |
| 15 |
| User | Count |
|---|---|
| 93 | |
| 85 | |
| 33 | |
| 31 | |
| 25 |