Passing Session Variables from GC Widget Script

Passing Session Variables from GC Widget Script

Hi team, I need your help for passing session variables from the script so the actual scenario i need to define some user-related fields like username, email and contact etc.. and pass this data dynamically from my website that display the GC widget, i need your help how i can do this.

I have built the GC Flow successfully and i need while display the GC Widget to add some variables dynamiclly to the flow to welcome the user according to his logged in details.