SELECTEDVALUE and HASONEVALUE in Power BI - Real Business Scenario

Scenario Mode

👤 Your Role: You are a sales analyst at a retail company.

📋 Request: Your manager wants a report that shows the total sales amount. When the report user selects a single product category, the report should display the sales for that category. If multiple or no categories are selected, the report should show the total sales for all categories with a message 'Multiple or no categories selected'.

📊 Data: You have sales data with columns: Date, ProductCategory, SalesAmount.

🎯 Deliverable: Create a measure that uses SELECTEDVALUE and HASONEVALUE to show sales amount based on the selection, and build a card visualization to display the result with the message when needed.

Sample Data

Date	ProductCategory	SalesAmount
2024-01-01	Electronics	1000
2024-01-02	Clothing	500
2024-01-03	Electronics	700
2024-01-04	Furniture	300
2024-01-05	Clothing	400
2024-01-06	Furniture	600
2024-01-07	Electronics	800
2024-01-08	Clothing	200

1

Step 1: Create a new measure named TotalSales that sums the SalesAmount column.

TotalSales = SUM(Sales[SalesAmount])

Expected Result

TotalSales measure sums all sales amounts, e.g., 4500 for the sample data.

2

Step 2: Create a new measure named SalesByCategory that uses SELECTEDVALUE to get the selected ProductCategory and shows sales for that category. If no single category is selected, show total sales with a message.

SalesByCategory = VAR SelectedCat = SELECTEDVALUE(Sales[ProductCategory], "Multiple or no categories selected") RETURN IF(HASONEVALUE(Sales[ProductCategory]), CALCULATE([TotalSales], Sales[ProductCategory] = SelectedCat), "Multiple or no categories selected: " & FORMAT(CALCULATE([TotalSales], ALL(Sales[ProductCategory])), "#,##0"))

Expected Result

When one category is selected, shows sales for that category (e.g., Electronics = 2500). When multiple or no categories selected, shows message with total sales (e.g., 'Multiple or no categories selected: 4500').

3

Step 3: Add a slicer visual to the report using the ProductCategory column to allow users to select categories.

Configure slicer with ProductCategory field.

Expected Result

User can select one or multiple categories to filter the report.

4

Step 4: Add a card visual to the report and set its value to the SalesByCategory measure.

Set card visual value to SalesByCategory measure.

Expected Result

Card shows sales amount for selected category or message with total sales if multiple/no categories selected.

Final Result

Electronics

↓

Furniture

✓Electronics category has the highest sales (2500).

✓When no or multiple categories are selected, total sales (4500) are shown with a message.

✓The measure correctly adapts to user selection using SELECTEDVALUE and HASONEVALUE.

Bonus Challenge

Modify the SalesByCategory measure to show sales amount for the selected category and also display the percentage of total sales that category represents.

Show Hint

Use DIVIDE function to calculate percentage: DIVIDE(Sales for selected category, TotalSales)