Our Auth0 tenant is configured for organizations using the new universal login, and I configured the email connector and enabled these connectors in a couple of organizations. I also switched to an Identity First Flow, as documented in the Passwordless Connections in New Universal Login documentation.
When I use the /passwordless/start API via the C# SDK with StartPasswordlessEmailFlowAsync(), the recipient gets a link targeting the classic login, which shows the error "Organizations are not supported in Classic Universal Login.
Is there a different API or set of parameters I should be using to get a new universal login link sent?
I don’t see any setting on Authentication API Explorer for targeting which login experience to use.