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

Enhance your career with this limited time 50% discount on Fabric and Power BI exams. Ends August 31st. Request your voucher.

Reply
PaulVanS267
Frequent Visitor

Using SUMMARIZE as a variable in NETWORKDAYS expression

Good afternoon,

 

Please could someone help me with an issue I am struggling with.  I have a Calendar dimension table that contains flags ("Y") for all UK Bank Holidays.  

 

I am trying to create an expression where:

  1. I define a variable that returns the filtered column of dates that are public holidays (to achieve this I am using the SUMMARIZE function)
  2. Use this variable in the NETWORKDAYS expression as the <holiday> parameter

 

The formula (which is not working) is:

NetWorkDays Summarize variable= 
VAR colHolidays = 
SUMMARIZE(FILTER(dimCalendar,dimCalendar[flgHoliday]="Y"),dimCalendar[Date])
RETURN
NETWORKDAYS(MAX(Projects[start_date]),MAX(Projects[end_date]),1,colHolidays)

 

The reason I thought this would work is I was able get the correct results by doing this in two stages:

First by creating a table using that SUMMARIZE formula

Table = 
SUMMARIZE(FILTER(dimCalendar,dimCalendar[flgHoliday]="Y"),
dimCalendar[Date])

PaulVanS267_1-1685030426397.png

 

And then I referenced that table in a NETWORKDAYS expression and it worked:

NetworkDays SUMAMRIZE Table = NETWORKDAYS(MAX(Projects[start_date]),MAX(Projects[end_date]),1,'Table')

 

Here is a screenshot of the table of results:

PaulVanS267_0-1685030234144.png

 

Please can you help me fix my variable definition?

 

Kind regards,

Paul

 

 

 

1 ACCEPTED SOLUTION

@PaulVanS267 Yep, that did it, here is the fix:

NetWorkDays Summarize Variable = //Not returning the correct result
VAR colHolidays = 
SUMMARIZE(FILTER(ALL(dimCalendar),dimCalendar[flgHoliday]="Y"),dimCalendar[Date])
RETURN
NETWORKDAYS(MAX(Projects[start_date]),MAX(Projects[end_date]),1,colHolidays) 


Follow on LinkedIn
@ me in replies or I'll lose your thread!!!
Instead of a Kudo, please vote for this idea
Become an expert!: Enterprise DNA
External Tools: MSHGQM
YouTube Channel!: Microsoft Hates Greg
Latest book!:
DAX For Humans

DAX is easy, CALCULATE makes DAX hard...

View solution in original post

4 REPLIES 4
Greg_Deckler
Community Champion
Community Champion

@PaulVanS267 Very odd. I can't replicate that. NETWORKDAYS accepts a virtual table as the 4th argument. PBIX is attached below signature.

 

 



Follow on LinkedIn
@ me in replies or I'll lose your thread!!!
Instead of a Kudo, please vote for this idea
Become an expert!: Enterprise DNA
External Tools: MSHGQM
YouTube Channel!: Microsoft Hates Greg
Latest book!:
DAX For Humans

DAX is easy, CALCULATE makes DAX hard...

Hi @Greg_Deckler 


Thank you for reaching out.

I have attached the pbix for you to look at. Perhaps it will be easier to identify the issue?

NetworkDays Example 

 

Kind regards,

Paul

@PaulVanS267 Yep, that did it, here is the fix:

NetWorkDays Summarize Variable = //Not returning the correct result
VAR colHolidays = 
SUMMARIZE(FILTER(ALL(dimCalendar),dimCalendar[flgHoliday]="Y"),dimCalendar[Date])
RETURN
NETWORKDAYS(MAX(Projects[start_date]),MAX(Projects[end_date]),1,colHolidays) 


Follow on LinkedIn
@ me in replies or I'll lose your thread!!!
Instead of a Kudo, please vote for this idea
Become an expert!: Enterprise DNA
External Tools: MSHGQM
YouTube Channel!: Microsoft Hates Greg
Latest book!:
DAX For Humans

DAX is easy, CALCULATE makes DAX hard...

Thank you so much @Greg_Deckler!

 

Works perfectly now.

 

Have a great day

 

Kind regards,

Paul

Helpful resources

Announcements
July 2025 community update carousel

Fabric Community Update - July 2025

Find out what's new and trending in the Fabric community.

July PBI25 Carousel

Power BI Monthly Update - July 2025

Check out the July 2025 Power BI update to learn about new features.

Top Solution Authors