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

Level up your Power BI skills this month - build one visual each week and tell better stories with data! Get started

Reply
hongho2
Frequent Visitor

Custom column

Hi,

I am new to Power BI and I need help with the syntax, please. I am trying to add a new custom column, and although there are no errors detected at the bottom, I am seeing an expression error at the top. Please refer to the image below.Screenshot 2023-07-06 113049.jpg

1 ACCEPTED SOLUTION
Greg_Deckler
Community Champion
Community Champion

@hongho2 You seem to be writing DAX in Power Query (M). The proper syntax for M (and yes, case matters) is:

if [Purchase Office] =  [New Purchase Office] then "T" else "F"


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

1 REPLY 1
Greg_Deckler
Community Champion
Community Champion

@hongho2 You seem to be writing DAX in Power Query (M). The proper syntax for M (and yes, case matters) is:

if [Purchase Office] =  [New Purchase Office] then "T" else "F"


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...

Helpful resources

Announcements
April Power BI Update Carousel

Power BI Monthly Update - April 2026

Check out the April 2026 Power BI update to learn about new features.

Fabric SQL PBI Data Days

Data Days 2026 coming soon!

Sign up to receive a private message when registration opens and key events begin.

New to Fabric survey Carousel

New to Fabric Survey

If you have recently started exploring Fabric, we'd love to hear how it's going. Your feedback can help with product improvements.

Power BI DataViz World Championships carousel

Power BI DataViz World Championships - June 2026

A new Power BI DataViz World Championship is coming this June! Don't miss out on submitting your entry.