Why sales lead matters to a first-time founder
Leads are the raw material of every sales forecast. If you count anyone who gave an email address, your cost per lead looks cheap and your conversion rate looks terrible, and you cannot tell which channel works. If you count too strictly, you ignore early interest that needed one follow-up. A clear rule for what makes someone a lead keeps your numbers honest and your time spent on people likely to buy.
Examples of sales lead
Forty people download your guide to chasing unpaid invoices. Each has shown a little interest, so many teams log them as marketing leads. Twelve then reply to the follow-up with a question about their own invoices. Those twelve are qualified leads worth a call. Measure conversion to paying customers against the twelve, and use the forty to judge how well the guide attracts the right people.
Common misunderstanding
People count a bought list, or a pile of business cards, as leads. Interest is the whole definition. Without it, you are measuring how many strangers you can annoy. Mixing contacts into the lead count makes every later number, including the cost of a customer, look better than it is.
When to use it
Start counting leads as soon as more than a handful of people show interest each month. Agree what counts, such as a reply, a booked call or a trial sign-up, and keep bought lists and cold contacts in a separate count. If a channel produces contacts but no leads after a few weeks of real effort, it has not started working yet.