Why the first minutes decide whether a lead picks up your call, and how to get there with automation instead of more staff.
Last updated 3 October 2026.
| Study | Finding |
|---|---|
| MIT / InsideSales lead-response study (Oldroyd, 2007) | Calling within 5 minutes instead of 30 made reaching the lead about 100× more likely and qualifying them about 21× more likely (15,000+ leads, 6 companies). |
| Harvard Business Review, "The Short Life of Online Sales Leads" (2011) | Firms that responded within an hour were nearly 7× as likely to qualify the lead as those that waited longer — yet the average first response across 2,241 companies took 42 hours, and 23% never responded. |
Numbers you see quoted like "78% buy from the first responder" have no traceable original study, so we do not rely on them. The two studies above are enough: minutes matter, and most businesses take hours.
| Metric | Good target |
|---|---|
| Time to first WhatsApp message | Under 1 minute, 24×7 |
| Time to first call (working hours) | Under 15 minutes |
| Leads that reply on WhatsApp | Track weekly — it tells you which ads bring real people |
| Leads with no next follow-up date | Zero |
Yes, using the official WhatsApp Business API and a template Meta has approved. The lead filled your form, so a welcome message is expected and useful.
No. It buys them time: the lead is greeted and warmed up instantly, and the counsellor calls someone who already knows the business.
Meta charges in India about ₹0.115 for a utility message and ₹0.86 for a marketing message; replies within 24 hours of the customer writing to you are free. Klozent adds no markup.
Related: Facebook Lead Ads to WhatsApp · WhatsApp API pricing calculator · WhatsApp CRM alternatives · Best WhatsApp CRM in India · Klozent pricing
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