To enable the SignupRequest API in your Salesforce org, log a case.
Enable the SignupRequest API in your business org. Then you can easily integrate sign-up data with your existing business processes. For example, create a workflow rule to convert sign-up requests into leads and run reports to track the number of sign-ups in a given period.
Log in to your business org to check if the SignupRequest API is enabled in your business org.
From Setup, in the Quick Find box, enter Object Manager, and then select Object Manager.
Verify that the Signup Request object appears. If you don’t see this object, log a case to enable the SignupRequest API.