Following the Docentric method to Add Additional Data to SSRS Report

D365FO
6

Just a follow up on this, can you tell me what this segment does and how I would figure that out?

In this line:

        CustInvoiceTrans custInvoiceTrans = this.custInvoiceTrans(_currentLine.JourTransRecId_DR);

How would I learn what this argument is doing?

_currentLine.JourTransRecId_DR