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IMCODEV
New Member

Formula for replacing first instance of a character from the right

Hello,

 

I'm tryting to format:

tim_cook_apple.com  ==> tim_cook@apple.com

 

Background

a ShareGate data report displays all external accounts in SPO as "i:0#.f|membership|tim_cook_apple.com#ext#@apple.onmicrosoft.com", which I am trying to extract the user Email from.  

After some transforming I got the string to trim into "tim_cook_apple.com". 

 

I am trying to reference the first underscore from the right and then use the substitute function to replace the underscore with @.  However the search, find functions always targets the first instance from the left.  How can I reference the first instance fo the underscore from the right?

 

Thank you

1 ACCEPTED SOLUTION
Greg_Deckler
Community Champion
Community Champion

@IMCODEV Try this:

New Column =
  VAR __Num = LEN([Column]) - LEN(SUBSTITUTE([Column],"_",""))
RETURN
  SUBSTITUTE([Column],"_","@",__Num)

 



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3 REPLIES 3
Greg_Deckler
Community Champion
Community Champion

@IMCODEV Try this:

New Column =
  VAR __Num = LEN([Column]) - LEN(SUBSTITUTE([Column],"_",""))
RETURN
  SUBSTITUTE([Column],"_","@",__Num)

 



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...

@Greg_Deckler  Thank you for the feedback.  I tried your formula, however I got the following error.

 

error.PNG

The error was caused from entries that were not in Email format.  Therefore the entries had no underscore which resulted in a 0 value being returned for the _num value.  As a workaround, I just created another column using the subsitiution function to swap the 0 for a valid value of 1.  Afterwards, the formula which @Greg_Deckler worked and I achieved my goal.

 

Thank you

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