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jl02
Frequent Visitor

IF row meets conditions then return value from a previous row.

Hello,

 

I currently have data that looks like this:

Date/TimeAgent NamePhone NumberRunning CountDepartmentIsFirstFirstDepartment
1/1/2021 3:00 PMAgent A12345678901Department XDepartment X 
1/2/2021 4:00 PMAgent B09876543211Department YDepartment Y 
1/3/2021 8:00 AMAgent C12345678902Department YDuplicateDepartment X
1/10/2021 10:00 AMAgent D09876543212Department XDuplicateDepartment Y
1/13/2021 5:00 PMAgent E56789012341Department XDepartment X 

 

What I want to do is if "IsFirst" = Duplicate, then I want to find when that phone number first occured and return that department that first took the call.  My "FirstDepartment" is the column I am trying to make. However, I have been unable to obtain those desired results.

3 REPLIES 3
lbendlin
Super User
Super User

You don't really need the "Duplicate" check but you can add that if you want.

First Dept := 
var d = SELECTEDVALUE(Calls[Date/Time])
var pd = CALCULATE(max(Calls[Date/Time]),ALLEXCEPT(Calls,Calls[Phone Number]),Calls[Date/Time]<d)
var pdept = CALCULATE(max(Calls[Department]),ALLEXCEPT(Calls,Calls[Phone Number]),Calls[Date/Time]=pd)
return pdept
lbendlin
Super User
Super User

Can you guarantee that your Date/Time column has unique values and can be used for the sorting? 

jl02
Frequent Visitor

Yes, They go down to the micro-second.

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