Calculated fields

[xyz123451]

I am very new to Qliksense and I am trying to create a new calculated field called Session Group by referencing data from the Session Name column but I am not very sure on how to do it. Will appreciate any help. Thank you!!

Original Sample Data

Final Sample Data 

[BrunPierre · Accepted solution]

Hi, perhaps like this.

SubField(Session_Name, '_', 3) as Succession_Group