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

Get Fabric Certified for FREE during Fabric Data Days. Don't miss your chance! Request now

Reply
bzeeblitz
Helper IV
Helper IV

Column Item no in Table Product contains a duplicate value '100-Product1'

While creating new relationship im getting error Column Item no in Table Product contains a duplicate value '100-Product1'  and this is not allowed for columns on the one side of a one-many relationship for columns that are used a s the primary key of a table.

 

Product

Item no product details  vendorname

 

Order

Itemno  ordername orderdate

 

caridnality i choosed one to many ,cross filter direction single and i got above error.

 

Actually im trying to create list report by pulling data after applying relationship

1 ACCEPTED SOLUTION

@bzeeblitz Here is the example. 

 

Tahreem24_0-1734953776257.png

 

Don't forget to give thumbs up and accept this as a solution if it helped you!!!

Please take a quick glance at newly created dashboards : Restaurant Management Dashboard , HR Analytics Report , Hotel Management Report, Sales Analysis Report , Fortune 500 Companies Analysis , Revenue Tracking Dashboard

View solution in original post

6 REPLIES 6
Tahreem24
Super User
Super User

@bzeeblitz As per the error message your shared, it seems like a your column (one side) has duplicate records. In order to have one-many relationship, Primary table column (One side) must have unique records, if not you can remove duplicates records or create a bridge table with only unique records then then connect both the tables with this newly bridge table.

 

 

Don't forget to give thumbs up and accept this as a solution if it helped you!!!

Please take a quick glance at newly created dashboards : Restaurant Management Dashboard , HR Analytics Report , Hotel Management Report, Sales Analysis Report , Fortune 500 Companies Analysis , Revenue Tracking Dashboard

One table contains 85000 records and i would appreciate if you could explain with sample screenshot of steps for bridge table as im new to this power bi reports

@bzeeblitz  Create a new table like below:

 

Bridge Table = DISTINCT(Table[ColumnName])

 

Note: Use the column name which you want to make the key to connect between your tables.

 

Then Connect TableA with BridgeTable & BridgeTable to TableB.

 

 

Don't forget to give thumbs up and accept this as a solution if it helped you!!!

Please take a quick glance at newly created dashboards : Restaurant Management Dashboard , HR Analytics Report , Hotel Management Report, Sales Analysis Report , Fortune 500 Companies Analysis , Revenue Tracking Dashboard

Thanks i created bridge table

 

how to then Connect TableA with BridgeTable & BridgeTable to TableB.

@bzeeblitz Here is the example. 

 

Tahreem24_0-1734953776257.png

 

Don't forget to give thumbs up and accept this as a solution if it helped you!!!

Please take a quick glance at newly created dashboards : Restaurant Management Dashboard , HR Analytics Report , Hotel Management Report, Sales Analysis Report , Fortune 500 Companies Analysis , Revenue Tracking Dashboard

Yes im able to create as mentioned so now i need to create a list report where i need to show different columns from order and product table so how to generate report for the same

Helpful resources

Announcements
November Power BI Update Carousel

Power BI Monthly Update - November 2025

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

Fabric Data Days Carousel

Fabric Data Days

Advance your Data & AI career with 50 days of live learning, contests, hands-on challenges, study groups & certifications and more!

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.

Top Solution Authors