Do want to Know why Leads are More Important for Field Service Business?. No business can survive without customers, and businesses should be proactive in filling their sales funnel with viable business leads. The type and quality of your business leads can make a major difference in how you grow your sales, and companies should understand the lead’s role and expectations in your sales process so you can be prepared to leverage every opportunity. Before going to dig deep into the matter, why the free leads are important? You must know what are leads? What do the leads do? And how your field business depends on leads? So, let’s dig deep into this.