AutomationPillar 03 of 04 · the enquiry engine

Enquiries that answer themselves. Admin that disappears.

Custom workflows that connect your CRM, email, invoicing and messaging channels, end to end, with real-time visibility. Every enquiry gets a personal reply in seconds, and your team only ever talks to warm leads.

Henry Goff leads every build. The same n8n stack runs every workflow on this page; a data & AI engineer joins where a pipeline needs one.

See the run-sheet

Free 30-minute callFixed price before the buildYou own the code from day one

Sales completed with no human involvement: 35%Sell Your Cab · client-reported
Admin saved every month: 100+ hrsSell Your Cab · in the director's words
Every enquiry answered in: Secondsemail · SMS · WhatsApp

Back-office dashboard: submissions, active leads, vehicles purchasing, completed, today's priorities — Sell Your Cab · back office, and the offer on a phoneas shipped

The valuation offer on a phone, with a one-tap accept — Sell Your Cab · back office, and the offer on a phoneas shipped

Drawing: Pillar 03 · Automation
Sheet: 1: home · 2: packages
Drawn by: Henry Goff
Stack: n8n · WhatsApp/SMS/email · Postgres · DVLA & DVSA APIs
Status: Live in production
Rev: 2026-09-08

§01 The workRun-sheets · screens as shippedEvery enquiry answered, chased, progressedScreens are the system demos; customer names are placeholders. Bars are illustrative shapes of each result, not client telemetry.

The enquiry engine, from the customer's phone to the back office, and what it replaced.

One system, seen from every angle: the offer the seller gets, the messages they receive, the workflow that decides what to send next, and the dashboard the team opens.

run 01

35% of sales with no human involvement

SMS and WhatsApp message previews from the nurture sequence, personalised per seller — SMS & WhatsApp · personalised per seller

Submissions list: 250 enquiries with registration, customer, vehicle, valuation, status and workflow stage — Submissions · every enquiry, staged

Enquiry-to-sale automation

Ads brought enquiries in volume and the team drowned answering them, because no customer ever engaged without a sales call. The fix wasn't more staff: a driver enters a reg, the system pulls vehicle details and MOT history, prices against private databases, and puts a real offer on screen. Every enquiry is answered in seconds and chased on a schedule; the team starts the day with warm leads only.

Thanks to Henry, our website stands out against the crowd, and the backend and workflows he built save us 100+ hours of admin every month. I can focus on running the business instead of chasing my tail.

Michael Noble · Director, Sell Your Cab

Survived compliance

Consent captured per channel before any message is sent; vehicle facts pulled from the official DVLA & DVSA APIs; the seven-stage nurture sequence runs for thirty days without anyone touching it.

Sales with no human involvementshare of completed sales

Before0%

After35%

Time to first replyper enquiry

Beforea call

Afterseconds

Before, no customer engaged without a sales call. Figures are the client's reported results; bar lengths illustrative.

fig. 2 · Enquiry → sale, as builtSell Your Cab · run 01

fig. 2 — fig. 1 on the home page is the general form of this diagram. Stage sequence and the 35% split are as shipped.n8n · WhatsApp/SMS/email · DVLA & DVSA APIs

Workflow trigger: a valuation form submission, with GDPR and PECR consent captured per channel — Trigger & consent, per channel

Branching logic in the enquiry workflow: opened, clicked, silent — Branching logic · opened, clicked, silent

The seven-stage nurture workflow over thirty days, step by step — Nurture · seven stages over thirty days

Composing a message to a seller from the record, with consent verified per channel — Compose · consent verified

run 02Cyntex Group1,000s of hours saved

Document automation inside a regulated CRM

For an FCA-regulated claims business, the letters, packs and case paperwork that ran on copy-paste are generated from case data: consistent, fast, the same every time, with the audit trail the regulator expects.

As an FCA regulated business, we needed someone who understood our field and could deliver a fast, simple and compliant custom CRM with document automation to match. Henry delivered on every count. Thousands of hours have been saved.

Muhammed Khan · Director, Cyntex Group

Survived compliance

Intake, generated documents, change management and records held in one auditable system.

Cyntex · generated packvalues withheld

regulated client

letters · packs · correspondence · from case datadrawn

The full run-sheet on the AI & Data page

run 01

Enquiry-to-sale automation across WhatsApp, SMS and email.

run 02Cyntex Group

Document automation inside an FCA-aware CRM.

The enquiry engine, the reminders bolt-on, and the CRM for when you’ve outgrown the $49 tool.

Three ways in, sized to the business. The first is Sell Your Cab’s system, productised; the second exists because a bespoke CRM loses to Hubtiger every time and shouldn’t be sold to a shop that runs one.

Enquiry Engine

Answer on WhatsApp, SMS and email in seconds, chase on a schedule, book, and hand to a person only when it’s warm. For any owner-run business missing enquiries.

from £5,000 +VAT · typical £5–8k · 3–4 weeks

Reminders Bolt-on

Service-due and warranty-window reminders wired onto what the shop already runs — Citrus-Lime, Hubtiger, Bikebook, Shopify or a spreadsheet — from a CSV or API export.

£1,500–£2,500 fixed +VAT · hosting from £75/mo · messaging at cost

Servicing Reminders & CRM

For auto, trades, salons and clinics where no $49-a-month incumbent sits: the reminder engine plus the record it needs, on the same stack as run 01.

from £5,000 +VAT · with the Growth care plan

What the finished system feels like from your side of it.

Data, analytics, AI and custom code land on one phone as notifications, then settle into a dashboard. That is the shape of run 01 as its owner sees it: the work happens, the phone tells you, and nobody had to chase.

fig. 4 · Four sources, one devicesimulated · plays once on entry

fig. 4 — what a finished system feels like from the owner’s side: data, analytics, AI and custom code land on one phone as notifications, then as a dashboard. Figures on the screen are illustrative.CRM & sheets · GA4 · Claude & GPT · n8n

Six parts of a system that answers, chases and closes.

Every part below is running for Sell Your Cab today. Combine the ones your process needs; the scope is fixed on the call.

Part 01
Workflow design & build
Custom n8n and bespoke workflows that take a process you do by hand and make it run itself, from trigger to done.
- End-to-end process automation
- Triggers, queues & retries
- Human-in-the-loop steps where you want them
Part 02
System & database integration
APIs, webhooks and private data sources connected into one source of truth: your numbers, your stock, your prices, everywhere at once.
- API & webhook connectors
- Private database lookups
- CRM & inbox sync
Part 03
Multi-channel messaging
Email, SMS and WhatsApp sequences personalised per customer, with consent captured per channel — GDPR and PECR compliant by design.
- Email, SMS & WhatsApp
- Per-channel consent capture
- Personalised templates
Part 04
Engagement tracking & lead scoring
Opens, clicks and replies tracked and verified, so sequences adapt to each lead and your team sees hot, warm and cold at a glance.
- Open & click verification
- Conditional follow-up routing
- Hot / warm / cold scoring
Part 05
Quotes, pricing & e-sign
Quotes priced from your own data and rules, not picked from a catalogue, then sent, accepted and signed without anyone printing, scanning or chasing.
- Pricing computed from your rules
- Self-serve acceptance & e-signing
- Booking & scheduling flows
Part 06see also
Real-time dashboards
A live backend your team actually opens: KPIs, prioritised leads and a full activity feed, no more spreadsheet wrangling.
- Live KPIs & sparklines
- Prioritised work queues
- Activity & audit feeds
Explore AI & Data

Map the busywork, draw the workflow, build it, watch it.

Every trigger, branch and message is mapped out and agreed before anything is built. You see the whole machine on paper first.

How a build runsfour steps

01
Map the busywork, free
30 min
We find the hours your team loses to repetitive admin and put a number on what automation would save, before you spend anything.
02
Design the workflow
on paper first
Every trigger, branch and message mapped and agreed. Consent, channels and hand-offs decided before a line of code.
03
Build & integrate
tested on live data
Workflows, integrations and the dashboard built and wired into your real systems, with safe fallbacks.
04
Monitor & improve
every run logged
Every run is logged and measured. We watch what customers respond to and keep tuning the sequences that win.

Studio leadaccountable

Henry GoffFounder & developer, London

Benchspecialist · contract

Product designeras scope demands
iOS engineernative apps
Data & AI engineerpipelines · models
SEO specialistsites that must rank

fig. 3 — how every build is staffed. You deal with Henry from the discovery call to care; contract specialists are attached per build, sized to the scope, and never sit between you and the person responsible.

Every figure names where it comes from.

Figure	What it measures	Source
35%	Sell Your Cab sales completed with no human in the loop	run 01
100+ hrs	Admin saved every month, in the director's words	run 01
Seconds	To a personal reply on email, SMS or WhatsApp	run 01 · fig. 2
7 stages	Nurture sequence, running over thirty days untouched	run 01 · screens
1,000s	Hours saved by document automation at Cyntex Group	run 02

The questions people ask before booking.

Q1Is the anchor the price I'll pay?

No. from £5,000 +VAT is where this kind of build starts; an enquiry engine typically lands at £5,000–£8,000 and takes three to four weeks. Every project is scoped on a free 30-minute call and priced as a fixed scope, plus VAT, before anything is built. The number you sign doesn't move unless the scope does.

Q2What's worth automating first?

The free discovery call answers that: we map where your team's hours actually go and put a number on the saving before you spend anything. The usual first win is the enquiry: answered in seconds, chased on a schedule, handed to a person only when it's warm.

Q3Can you automate our quoting process?

Often the honest answer is Xero, Quotient or your trade software. If your quote is picking line items and sending a PDF, they do that well for about £25 a month, and we'll tell you so on the call. Bespoke earns its keep when working out the price is the hard part: a cost model spread across twenty tabs, live supplier prices, or a site survey that has to become a number. Sell Your Cab's system prices every vehicle from private databases and puts a real offer on screen before a competitor has opened the email.

Q4We run a workshop on Citrus-Lime or Hubtiger. Do we need a CRM?

Almost certainly not. A $49-a-month system you already run beats a bespoke CRM every time, and we'll say so. What those systems don't do well is the reminder that brings a customer back: service due, warranty window closing. The Reminders Bolt-on wires that onto what you already run, from a CSV or API export, for a fixed £1,500–£2,500 plus hosting from £75 a month and messaging at cost.

Q5Will customers notice they're talking to a machine?

They notice they get answered. Sell Your Cab's system replies personally on email, SMS and WhatsApp within moments, with humans stepping in exactly where they're needed. 35% of sales now complete with no human in the loop.

Q6Is automated messaging GDPR-compliant?

Built that way from day one: consent is captured per channel before any message is sent, so every email, SMS and WhatsApp message is GDPR- and PECR-compliant by design.

Q7What happens if Henry is unavailable?

You own the repository from day one, so nothing is held hostage. Every build is documented to a written standard, a named backup developer is written into the contract, care plans carry stated response times, and the contract includes a repo-ownership clause. The studio is small on purpose; the continuity policy is what makes that safe to buy.

Q8Who owns the code and the accounts?

You do. The repository, the hosting account, the domain and every third-party service are set up in your name or transferred to it at handover. We hold access only for as long as a care plan says we should.

Hire your tireless employee.

A free 30-minute call: we map the busywork eating your team's week and show you what a system that answers, follows up and closes for you looks like. It ends with a fixed price.

from £5,000 +VATenquiry engine typically £5–8k · 3–4 weeks · fixed scopeSee all packages

Enquiries that answer themselves. Admin that disappears.

The enquiry engine, from the customer's phone to the back office, and what it replaced.

Enquiry-to-sale automation

Document automation inside a regulated CRM

The enquiry engine, the reminders bolt-on, and the CRM for when you’ve outgrown the $49 tool.

Enquiry Engine

Reminders Bolt-on

Servicing Reminders & CRM

What the finished system feels like from your side of it.

Six parts of a system that answers, chases and closes.

Workflow design & build

System & database integration

Multi-channel messaging

Engagement tracking & lead scoring

Quotes, pricing & e-sign

Real-time dashboards

Map the busywork, draw the workflow, build it, watch it.

Map the busywork, free

Design the workflow

Build & integrate

Monitor & improve

Every figure names where it comes from.

The questions people ask before booking.

Hire your tireless employee.