Dear All,
I have made an attempt to prepare dispatcher workflow in a different fashion as mentioned in the walkthrough. I am just facing the issue in the last step.
Basically, I have done the following:
a) Initiate Process; System 1 Log in & Navigate to WI Page
b) Transaction Data: Same as in walkthrough
c) Process: ExtractDataTable (however, up to last page) and trying to upload all the data in Orchestrator together.
However, I am getting an error while adding queue item 
Attaching my process workflow for easy reference.Process.xaml (10.2 KB)