Skip to main content
Showing results for 
Search instead for 
Did you mean: 

The ultimate Microsoft Fabric, Power BI, Azure AI & SQL learning event! Join us in Las Vegas from March 26-28, 2024. Use code MSCUST for a $100 discount. Register Now

Helper I
Helper I

Identify new clients based on client ID and date

Hi everyone! I have a pretty complex problem that I have no idea how to tacke. 


So I have a customer ID column, a date column and a brand column. I have clients that have bought many times, but I also have clients that only bought once some time ago. 


I need to find out which clients are new. This is defined by those customer IDs that have only bought once in the last month. 


Any ideas on a meassure or column that could help me get that number? Ideally I should have that per brand also, but if it's too much, I can drive myself crazy thinking about that one later on. 

Super User
Super User

Hello @pcda,


You can create a measure to count the number of customers that have bought only once in the last month:


New Customers = 
VAR LastMonthStart = EOMONTH(TODAY(), -1) + 1
VAR LastMonthEnd = EOMONTH(TODAY(), -1) + DAY(EOMONTH(TODAY(), -1))
VAR CustomerSales =
            'Sales'[Date] >= LastMonthStart && 'Sales'[Date] <= LastMonthEnd
        'Sales'[Customer ID],
        "TotalSales", SUM('Sales'[Sales Amount])
        [TotalSales] = MINX(CustomerSales, [TotalSales])


You can modify this to include the brand column by adding the brand column to the SUMMARIZE function and updating the filter accordingly.


Hope this helps you.

Did I answer your question? Mark my post as a solution, this will help others!

If my response(s) assisted you in any way, don't forget to drop me a "Kudos" 🙂

Kind Regards,
Sahir Maharaj
Data Scientist | Data Engineer | Data Analyst | AI Engineer
P.S. Want me to build your Power BI solution?
➤ Lets connect on LinkedIn: Join my network of 13K+ professionals
➤ Join my free newsletter: Data Driven: From 0 to 100
➤ Website:
➤ Email:
➤ Want me to build your Power BI solution? Lets chat about how I can assist!
➤ Join my Medium community of 30K readers! Sharing my knowledge about data science and artificial intelligence
➤ Explore my latest project (350K+ views):
➤ 100+ FREE Power BI Themes: Download Now
LinkedIn Top Voice in Artificial Intelligence, Data Science and Machine Learning

Thanks! That helps a lot! 


Do you know if there's any way to tie end and start of month to a dynamic slicer instead of to Today?


Thanks again! This was a great help!

Helpful resources

Fabric Community Conference

Microsoft Fabric Community Conference

Join us at our first-ever Microsoft Fabric Community Conference, March 26-28, 2024 in Las Vegas with 100+ sessions by community experts and Microsoft engineering.

February 2024 Update Carousel

Power BI Monthly Update - February 2024

Check out the February 2024 Power BI update to learn about new features.

Fabric Career Hub

Microsoft Fabric Career Hub

Explore career paths and learn resources in Fabric.

Fabric Partner Community

Microsoft Fabric Partner Community

Engage with the Fabric engineering team, hear of product updates, business opportunities, and resources in the Fabric Partner Community.