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! It's time to submit your entry. Live now!
I keep getting an error that tells me I cannot create a relationship between two tables because one of them has to have unique values. Can someone explain this to me? Don't you need to join the tables together by a common point?
Thank you,
Joseph
Solved! Go to Solution.
A unique value is a column that does not contain any duplicates, thus unique.
UNIQUE NOT UNIQUE
1 1
2 1
3 2
4 3
5 1
One of the tables has to have unique values. If you cannot do that with your two tables, create a third table that pulls all of the values from both tables (merge step) and then does a "Unique values" step. Then, link both tables to that third table.
but what is considered a unique value?
A unique value is a column that does not contain any duplicates, thus unique.
UNIQUE NOT UNIQUE
1 1
2 1
3 2
4 3
5 1
That makes total sense. Thank you!!!!
The Power BI Data Visualization World Championships is back! It's time to submit your entry.
Check out the January 2026 Power BI update to learn about new features.
| User | Count |
|---|---|
| 60 | |
| 49 | |
| 30 | |
| 25 | |
| 23 |
| User | Count |
|---|---|
| 131 | |
| 103 | |
| 58 | |
| 39 | |
| 31 |