To create a Request without having to go through the Service Portal and staying within ServiceNow, make your way over to the Self-Service application and then the Service Catalog module. From there, click on ‘Can We Help You?’
Click Service Catalog 
Click Can We Help You
From there, you’ll have a choice of which Group you’d like to make a request for. For the sake of demonstration, let us pick an IT Service Desk Request.
Enter details in the required description box, then click ‘Order Now.’ The ‘Requested for’ and ‘Short description’ fields are optional.
After clicking ‘Order Now,’ you should receive a confirmation screen like the one below.
Congratulations! You’ve now submitted a Request from inside ServiceNow.