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

Get Fabric Certified for FREE during Fabric Data Days. Don't miss your chance! Request now

Reply
jeoosma
Helper II
Helper II

IF Function -

Hi guy. I've to calculate the difference between two date (which are in the same table) but if one is blank I want to use today.

 

I write the function so:

 

if isblank([RechDatum]) then now() - [Eingangsdatum] else 0

 

but it doesn't work, gives me error.

 

How can I resolve? Thank you.

 

 

Max.Smiley Sad

1 ACCEPTED SOLUTION

You can use below two step method 

 

Create a new column

 

Column = If(Table1[Date 2] = BLANK(),TODAY(),Table1[Date 2])

BI1.png

 

Then Date Difference you can calculate as below

 

 

BI2.png

 

DATEDIFF = DATEDIFF(Table1[Date 1],Table1[Column],DAY)

 

Please let me know if this helps Smiley Very Happy

 

View solution in original post

3 REPLIES 3
jeoosma
Helper II
Helper II

Sorry, the sintax DAX can be used also in power query of Excel?

You can use below two step method 

 

Create a new column

 

Column = If(Table1[Date 2] = BLANK(),TODAY(),Table1[Date 2])

BI1.png

 

Then Date Difference you can calculate as below

 

 

BI2.png

 

DATEDIFF = DATEDIFF(Table1[Date 1],Table1[Column],DAY)

 

Please let me know if this helps Smiley Very Happy

 

Thank you as soon as possible I'll use the function

Helpful resources

Announcements
November Power BI Update Carousel

Power BI Monthly Update - November 2025

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

Fabric Data Days Carousel

Fabric Data Days

Advance your Data & AI career with 50 days of live learning, contests, hands-on challenges, study groups & certifications and more!

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.

Top Solution Authors