Good question.
An SDR, known as a “Sales Development Representative,” is the lifeblood of any sales team. But, to not wax too poetic, they are usually the first interaction a prospective client has with an organization whose aim is to work with them.
SDRs can be Inbound, meaning they’re reaching out to folks who inquire via a form, phone, email, etc., they can be Outbound, meaning they’re prospecting and reaching out to organizations who may have never heard of them (i.e. cold-calling/emailing), or a mix of both.