I am doing Trailhead from the link: https://trailhead.salesforce.com/modules/api_basics/units/api_basics_bulk and using the Workbench REST executor to bulkyfy the code. I am getting below error:
Raw Response HTTP/1.1 400 Illegal character 0x20 Content-Length: 0 X-Cnection: close
I have make sure I am using valid SessionId using SOAP API tool.
Not sure what is the issue?
Making sure using correct sessionId: