Что такое Lead, я описывал в предыдущем вопросе:

In business, a "lead" is the information for a potential customer. Leads are often "cold leads", just like in "cold calling", when the person initiating the contact doesn't know if the lead is even interested.
In E-mail, an E-mail lead are the E-mail addresses of potential contacts. Potential contacts are typically lists of active E-mail addresses.

Помогите сформулировать перевод фразы "Lead Generation and Flow" ?