Power BI - Basics and Architecture
You try to create a relationship in Model View but get an error saying 'Cardinality conflict'. What should you check first?
You try to create a relationship in Model View but get an error saying 'Cardinality conflict'. What should you check first?
medium📝 Formula Fix Q6 of 15
Step-by-Step Solution
Solution:
Step 1: Understand cardinality in relationships
Cardinality conflict usually means the 'one' side column has duplicates.Step 2: Check uniqueness of values
Ensure the column on the 'one' side has unique values to avoid conflict.Final Answer:
If the columns have unique values on the 'one' side -> Option CQuick Check:
Cardinality conflict = duplicate values on 'one' side [OK]
Quick Trick: Check uniqueness on 'one' side column for relationships [OK]
Common Mistakes:
- Checking row counts instead of uniqueness
- Looking at Data or Report View
- Ignoring cardinality meaning
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