Log in to the G Suite Admin Console.

Click Apps.
​

Click SAML apps.
​

Click on the '+' in the bottom right hand corner to enable SSO for a SAML application.
​

Find and click on HackerOne in the Apps list.
​

Copy the SSO URL and Certificate.
​

Click Next.

Click Next on the Basic Information for HackerOne window
​

Click Next on the Service Provider Details window
​

Adjust the attribute mapping as needed.
​

Click Finish.

Click OK to confirm.
​

Click Edit Service.
​

Edit the options to enroll users or organizational units into the HackerOne application. The status will change stating that the application is ON.
​

Follow the SAML setup instructions here.