Under Settings | Gateway is the option to "Click button below to setup WSS Agent"
This is happening because the CloudSOC SysAdmin does not have a WSS account with same email address / login credentials as in CloudSOC,
or a WSS tenant has not been registered / linked to that CloudSOC tenant.
In order for the login to be seamless both CloudSOC and Threatpulse need to have the same email address for a seamless login.
WSS Threatpulse requires the Broadcom login. Mid 2023 CloudSOC will require the Broadcom login. The user must have access to both CloudSOC and Threatpulse.