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
joshua1990
Post Prodigy
Post Prodigy

Merge columns with null

Hi experts!

I have a 3 columns with text values. Some cells are empty / value = null.

I added a merged column with a seperator "_". Now, if a column is null I don't get the seperator "_".

Instead of Value1__ (2 x "_") I just get Value1.

 

How can I get a seperator "_" if the column / value is null?

2 REPLIES 2
Vijay_A_Verma
Most Valuable Professional
Most Valuable Professional

If separator is same between all the columns, then Text.Combine will work

Text.Combine({[Column1],[Column2],[Column3]}, "_")

if separators are different between columns, then use Replacer.ReplaceValue. In below example, I am using _ and ** as separators

Replacer.ReplaceValue([Column1], null, "") & "_" & Replacer.ReplaceValue([Column2], null, "") & "**" & Replacer.ReplaceValue([Column3], null, "")
Mahesh0016
Super User
Super User

@joshua1990  please can you share your end output? Thank You!!

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.