§ Case Study
How a UAE Industrial B2B Client Built a 5-Stage Automated Commercial Engine
UAE · Industrial B2B
The situation before
- Sales team manually scanning rooftops in Google Maps, logging to Excel. No ICP targeting, no scoring.
- Leads arriving across WhatsApp, email, LinkedIn, landline — no unified view. Frequent misses after hours.
- 40-question manual phone qualification checklist for every lead. No lead scoring.
- 7 days from enquiry to first proposal. Engineers visiting non-converting leads on site.
- 20 engineering hours per commercial proposal. 20% DEWA rejection rate driven by pre-2008 load schedule issues caught at submission.
- Post-sale fleet monitoring: someone reading inverter emails the next morning.
Stage 1 — FIND: market intelligence + Apollo outbound
Before: manual Google Maps rooftop scanning, logged to Excel. No ICP targeting. No scoring. The sales team did not know which prospects were worth calling first.
After: 200+ ICP-qualified outreach touches per month, each pre-scored before first contact. Weekly market brief shipped automatically every Monday — executive summary, ranked opportunities, competitor movement, regulatory signals, recommended BD actions.
Stack: n8n · Google Maps API · Apollo.io · SerpAPI · custom scoring model
Stage 2 — CAPTURE: unified inbound across every channel
Before: leads scattered across WhatsApp Business, email, web form, LinkedIn DMs, and landline. Every lead manually logged to Zoho when someone noticed. Missed leads common after hours.
After: every lead logged to Zoho within 90 seconds of arrival — channel, timestamp, message body captured. AI agent asks pre-qualifying questions via the same channel the lead used. Day 1, 3, and 7 follow-ups auto-scheduled. Zero missed leads after hours.
Stack: WhatsApp Business API · n8n · Zoho CRM · AI classifier
Stage 3 — VERIFY: DEWA bill → 9-dimension lead score
Before: 40-question manual phone checklist. No scoring. Engineers driving out to survey leads that would not convert. Wasted field hours every week.
After: DEWA bill receipt triggers automatic verification. AI extracts bill data and scores the lead across 9 dimensions. Routing rules based on score:
- Score under 50 → automated nurture sequence. No engineer time.
- Score 50–64 → SDR review before routing. Human judgment for edge cases.
- Score 65+ → auto-verified, 2-page pre-feasibility report generated in under 48 hours, calendar link sent.
Stage 4 — PROPOSE: DEWA pack template engine
Before: 7 days from enquiry to first proposal. 10 engineering hours per residential DEWA pack, 20 hours per commercial. 20% DEWA rejection rate — most commonly missing load schedules for pre-2008 buildings.
After: pre-feasibility auto-generated from the DEWA bill in 48 hours (was 7 days). DEWA pack template engine pre-populates datasheets, specs, single-line diagrams, and production calcs. Engineers review and sign off — they do not build from scratch. Three financing models (CapEx, Deferred 5-year, Lease/PPA 20-year) auto-modelled. 20h → 4–6h of review.
Stage 5 — DELIVER & RETAIN: fleet fault management
Before: fault code 408 ("DC voltage too high") fires at 3:15pm. Email hits info@ at 11:13pm. Code looked up manually the next morning. No Zoho ticket. Client never notified.
After: webhook monitoring across Sungrow iSolarCloud, Fronius SolarWeb, and Huawei FusionSolar checked hourly. Fault classification:
- CRITICAL → engineer + client notified immediately.
- WARNING → Zoho ticket, engineer review scheduled.
- INFO → logged to monthly report only, no human alerted.
Summary — what measurably changed
| Metric | Before | After |
|---|---|---|
| Outreach volume | Manual scanning | 200+ qualified touches/month |
| Lead capture time | Hours, often missed | < 90 seconds, unified |
| Proposal turnaround | 7 days | 48 hours |
| Engineering hours per proposal | 20 hours | 4–6 review hours |
| Fleet fault alerting | Next-morning email | < 1 hour, automated |
§ Stack at a glance
n8n, Zoho CRM, Apollo.io, OpenAI, Google Maps API, Sungrow iSolarCloud, Fronius SolarWeb, Huawei FusionSolar, WhatsApp Business API, SerpAPI
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