Key Takeaways
An AI lead qualification and booking system deployed for a B2B SaaS client automated the full SDR function: lead scoring, personalised outreach, qualification questioning, and calendar booking. Response time: 4 hours to 4 minutes. Demo show rate: +38%. Pipeline growth: +40% in Q1. Architecture: intent data from website behaviour triggers AI qualification workflow, which assesses ICP fit, personalises messaging, and books meetings into rep calendars via Calendly API. Human SDRs now handle only qualified pipeline, increasing their conversion rate from 18% to 31%.
The SDR Problem Most SaaS Companies Have
SDRs spend 73% of their time on tasks that don't require human judgment: researching companies, personalising outreach templates, following up on unresponsive leads, and scheduling calls. That 73% costs £40–80k per head per year. The 27% that does require human judgment — the actual sales conversations — is where they should live entirely.
The Qualification System Architecture
Trigger: lead submits form or hits intent score threshold on website. Step 1: AI enriches lead with firmographic data (company size, funding, tech stack, hiring signals). Step 2: ICP scoring model assesses fit on 14 weighted criteria. Step 3: if score > 72, AI sends personalised qualification email — written for that company, not from a template. Step 4: if reply, AI conducts 3-question qualification conversation. Step 5: if qualified, books meeting directly into rep calendar.
The Personalisation Layer
Generic outreach kills response rates. Our system pulls 5 data points per lead: recent company news, LinkedIn activity, website copy, job postings (signals of growth and pain), and competitor tool usage. These are injected into a dynamic prompt that generates a personalised opening line — not just a mail-merge field swap, but contextually relevant observations that feel researched.
The Results After 90 Days
Response time: 4 hours → 4 minutes. Qualification rate: 22% → 29% (better ICP filtering). Demo show rate: +38% (better qualified leads show up). Pipeline: +40% without hiring. SDR quota attainment: +31% (they close more because they spend more time closing). The full system cost was £28k to build and £1,200/month to operate. It replaced the function of 1.5 SDRs (£105k/year).
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