To achieve dynamic segmentation of customers based on sales trends in Power BI, the following outline provides effective input:
1. Define Sales Growth Categories
Initiate the segmentation by identifying threshold values, for example:
High-Growth: A sales increase greater than 20%
Stable: Sales change in-between -10% to 20%
Declining: A sales decrease greater than 10%
2. Create a DAX Measure for Sales Trend Calculation
This DAX measure calculates sales growth over time:
Sales Growth % =  
VAR CurrentSales = CALCULATE(SUM(Sales[Amount]), Sales[Date])  
VAR PreviousSales = CALCULATE(SUM(Sales[Amount]), DATEADD(Sales[Date], -1, YEAR))  
RETURN  
IF(NOT ISBLANK(PreviousSales), DIVIDE(CurrentSales - PreviousSales, PreviousSales, 0), BLANK())
3. Create a Dynamic Segmentation Measure
Define customer groups based on the sales growth percentage:
Customer Segment =  
SWITCH(  
    TRUE(),  
    [Sales Growth %] > 0.2, "High-Growth",  
    [Sales Growth %] <= 0.2 && [Sales Growth %] >= -0.1, "Stable",  
    [Sales Growth %] < -0.1, "Declining",  
    "No Data"  
)
4. Apply the Segmentation in Reports
- Use this measure in a table or bar chart to categorize customers.
 
- Allow filtering by date ranges to adjust segmentation dynamically.