Day 21 – The Grand Finale of the 21-Day DAX Challenge!

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Over the past 21 days, we’ve built practical DAX solutions for real-world business problems and today we finish strong with Supplier Analytics.

Today’s Question:
Which supplier offers the widest range of unique products?

In this video, you’ll learn how to:
1. Create a virtual table with supplier ID & product count
2. Use COUNTROWS to find product variety per supplier
3. Find the supplier with the maximum unique product count
4. Use LOOKUPVALUE to return the supplier’s name

Result: Dell Technologies tops the list with the most diverse product range.

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0:08 - Welcome to Day 21: Final challenge
0:19 - Today’s focus: Supplier analytics
0:59 - Step 1: Create virtual table with Supplier ID & Product Count
1:47 - Step 2: Find max product count
2:08 - Step 3: Identify supplier with max count
2:36 - Step 4: Use LOOKUPVALUE to get supplier name
2:57 - Final Output: Dell Technologies
3:17 - Recap of all 21 challenges
3:37 - Closing thoughts & next steps


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