Can we call associateLead for an anonymous lead? Munchkin JavaScript

[Anonymous]

Can we call associateLead for an anonymous lead? For example, we have an anonymous user going through our survey and we want to associate certain answers. It's only at the end of the survey that we get an email address and can convert into a known non-anonymous lead.

[Anonymous · Accepted solution]

The answer from Marketo support: 

"No, we require email address in order to make the association."