Custom CPQ Software for UK Businesses

Quotes that take days instead of hours. A discount that should never have been offered. A configuration the factory then can’t build. Plenty of UK businesses still assemble quotes by hand across spreadsheets, a CRM and a price list, then deal with the fallout when something doesn’t add up. Off-the-shelf CPQ software is supposed to fix this, and often trades one headache for another by making you bend your process around the tool.

I build custom CPQ (configure-price-quote) software around your products, your pricing rules and your approval chain, with the manual steps stripped out so quotes come out right first time. ByteGears is senior-led: the person who maps your pricing logic is the person who builds it, and the result is yours to keep with no per-seat fee.

CPQ starts to matter once product configuration gets complex, once you run more than one pricing model, or once enough people touch a quote that errors and slow turnaround cost deals. Common triggers: spreadsheet errors creeping up, a move to subscription or usage-based pricing, new regions or entities that price differently, or an audit that showed you can’t explain how a price was reached.

Where off-the-shelf CPQ software falls short

• Per-seat pricing punishes adoption. CPQ licences are priced per user per month. Add the finance approvers and occasional users who also need access and the bill climbs, so finance limits seats to the top reps and adoption stalls.
• The cost beyond the licence. Enterprise platforms are usually set up by implementation partners, and data migration and consultant time are billed on top. Document generation, contract management and analytics are often add-ons.
• Unusual pricing logic doesn’t fit. Margin-based dynamic pricing, territory rules or subscription-plus-usage models rarely map onto a vendor’s rules engine, so the rules get hardcoded around the edges.
• Approval chains are rigid. Many platforms force one approval flow for every deal, so a simple quote waits behind sign-offs meant for a complex one.
• Legacy integration is awkward. If your ERP, billing or stock system is old or in-house, standard CPQ vendors often won’t connect to it, and data gets re-keyed between systems.
• Every change needs a consultant. Enterprise tools push configuration changes through partners, so launching a product line becomes a multi-week project.
• UK specifics come last. US-first platforms can be weak on VAT treatment, Making Tax Digital and UK data residency.

The cost shows up later as margin eroded by ad-hoc discounting and deals lost because a quote was slow or wrong.

Off-the-shelf CPQ is the right call in plenty of cases. If your pricing is fairly standard, your team is small, your products have few configurations and you already live inside Salesforce or HubSpot, a SaaS tool gets you there faster and cheaper. Bespoke earns its place when your pricing or approval logic is unusual, when you need to connect systems vendors won’t touch, or when per-seat costs become punishing as you grow.

What I build instead

• I map your current quoting process first, then build software that fits it.
• You pay for the build once and own the result and the IP.
• It connects directly to your CRM, ERP, accounting and billing systems.
• Your pricing logic, however unusual, lives in code you control, not a vendor’s rules engine.
• VAT, UK GDPR and any industry approval checks are handled from the first release.
• Adding a product line or a new pricing model later doesn’t need a consultant.

What goes into a CPQ system

1. Product configurator. Your product tree, variants and attributes, with constraint checking that stops invalid combinations being quoted and updates the price as options change.
2. Pricing engine. List, volume-tiered, customer-type, regional and promotional pricing, with subscription and usage-based models where you need them, and live margin calculation.
3. Approval workflows. Routing on discount depth, deal value, customer type or margin floor, with sequential or parallel approvers, escalation timeouts and reminders.
4. Quote documents. Branded quotes with multiple options side by side, and e-signature where you want it.
5. CRM and ERP integration. Customer and opportunity data in, approved quotes back out as orders, cost and stock data feeding the margin calculation.
6. Audit trail and access control. Every pricing, configuration and approval change logged, with role-based limits on who can see cost and how far each person can discount.
7. Reporting. Quote turnaround, win rate, discount patterns and margin trends, with exports for your own BI tools.
8. Mobile access that holds up for reps quoting on site.

The first release usually covers the configurator for your highest-volume products, quote generation, a read-only CRM lookup and a simple approval step. The rest follows in phases.

From quote to cash

Most CPQ projects stop at the signed quote, and that is where a lot of revenue leaks. Sales negotiates custom terms: a payment schedule, a seat count, a usage cap, a deferred start date. In most setups none of that reaches invoicing on its own, so someone in finance re-keys it, errors creep in, and customers dispute invoices.

Extending CPQ through to cash closes that gap:

• Contract records. The signed quote becomes a contract with version tracking, amendment history, renewal dates and auto-renewal rules, so renewals get re-quoted on time.
• Billing schedules. Upfront, milestone, recurring or usage-based, created from the quote’s own terms, with proration when a customer upgrades mid-term.
• VAT invoices. Sequential numbering, your VAT registration number, the time of supply and the VAT breakdown HMRC lists for a valid VAT invoice, posted to Xero, Sage or QuickBooks through their Making Tax Digital compatible ledgers.
• Payment collection. Stripe for cards and GoCardless for Direct Debit, with payment status shown beside the invoice and the contract, and reminders on overdue invoices.
• Revenue reporting. Invoiced against collected, debtor days, and deferred revenue on multi-year or multi-element contracts where your accountant applies IFRS 15.

I usually build this as a second phase, once quoting is settled, and run it in parallel with your current invoicing until the numbers match.

How the build works

1. First Gear, five days, £495. I go through your quoting process, document the pricing rules, product hierarchy and approval logic, and build a working prototype of the configurator on your own catalogue. The prototype comes with a one-page plan that fixes the build price, and the £495 is credited against it.
2. First release, live within a month. The core configurator, pricing engine and quoting logic, with regular reviews as it takes shape.
3. Testing and rollout. User acceptance testing, catalogue and customer data migration, and a staged rollout starting with a pilot team.
4. Later phases and support. Approvals, CRM sync and the billing side, each about a month and fixed-price. After go-live you get 30 days of fixes and a month’s hosting at no charge, then choose a monthly plan or run it yourself.

The main variable is data. Migrating a product catalogue is usually the longest single task in a CPQ project, because catalogues are rarely tidy: inconsistent pricing, discontinued products still listed, discount logic that lives only in someone’s head. I plan for that cleanup up front. The other risk is adoption. Reps used to quoting in Excel can find any new system slower at first, and standardised pricing can ruffle people used to ad-hoc discounts, which is why the rollout starts with a pilot team and training by role.

What it costs

A build costs more up front than a subscription, so compare total cost over the years you’ll run it:

• A fixed build cost instead of per-seat subscriptions that climb every time you add a user.
• No implementation partner bill and no per-feature add-on charges.
• No forced upgrades and no consultant needed every time pricing changes.
• The configurator, the pricing rules and the data belong to you.

My builds mostly cost £2k to £10k, priced once the First Gear prototype is done. A standalone configurator and quoting tool usually fits in one build. Multi-step approvals with CRM integration, and the full quote-to-cash link into ERP and billing, come as further fixed-price phases.

Where this gets used

Custom CPQ earns its keep where products are configurable, pricing has rules, or quotes need sign-off:

• Manufacturing and industrial equipment: kit with thousands of valid component combinations, bill-of-materials constraints, and pricing on material plus labour plus margin.
• IT services and resellers: bundles of hardware, software and managed services, approved distributor margins, and quotes tied to live pricing.
• Construction: project quotes built up from material and labour costs, routed for sign-off above a value threshold, then billed in stages.
• Wholesale and B2B distribution: tiered pricing by customer type, volume rebates and discount-depth limits that protect margin.
• Professional services: scope-based quotes tied to a rate card, approvals for below-standard day rates, and milestone or retainer billing.
• SaaS and cloud services: subscription tiers, usage overage, multi-year ramps and renewal quotes, with deferred revenue data reaching finance.
• Medical equipment and healthcare suppliers: configurable devices with compatible accessories and service contracts, prices that differ for NHS and private buyers, and an audit trail for every pricing decision.
• Financial services: compliance checks and manager sign-off for non-standard terms built into the quote workflow.

If your quotes are simpler and the problem is mainly proposal documents and sign-off, quote and proposal software is the closer fit. Tell me what you sell and how it’s priced, and I’ll tell you which one you need.

Common Questions About Custom CPQ Software

How does a custom CPQ build compare on cost to SaaS? ›

You pay a fixed build cost instead of per-seat fees that climb with every sales rep, finance approver or occasional viewer. Enterprise CPQ platforms usually add implementation partners, and document generation, contract management or advanced analytics are often extra modules. Most of my builds land between £2k and £10k, with the price fixed after First Gear, and bigger systems are split into fixed-price phases. I'll work the comparison through against your own SaaS quotes.

What's the typical development timeline? ›

First Gear takes five days and gives you a working prototype of the configurator on your own products. A standalone configurator and quoting tool with simple pricing and a couple of approval steps then goes live within a month. Multi-step approvals, CRM integration and the billing side follow as later phases, each about a month with its own fixed price. Most teams start with a pilot group before the whole sales team moves over.

Do you build a product configurator with constraint checking? ›

Yes. I model your product tree, variants and attributes, then encode the rules that stop invalid combinations being quoted, for example "anything above 5kW needs a three-phase supply". The price updates as options are picked, so the configuration and the price stay in step.

Can CPQ handle quote to cash, through to invoicing and payment? ›

Yes. A signed quote can create the order, the contract record and the billing schedule in one step, so payment terms, seat counts and start dates agreed in the deal reach finance without re-keying. Invoices go to Xero, Sage or QuickBooks, and Stripe or GoCardless collect payment. Contract-to-invoice handoff is usually a second phase once quoting is settled.

How do you handle approval workflows and margin control? ›

I build the routing rules your business uses. That can mean escalating on discount depth, deal value, customer type or margin floor, with sequential or parallel approvers and reminders on overdue sign-offs. Every quote carries an audit trail of who changed what, who approved it and when.

What about UK VAT, GDPR and data security? ›

The pricing engine applies VAT by product type and customer location, including reduced and zero rates and place-of-supply rules, and invoices carry the details HMRC requires on a VAT invoice. The system follows UK GDPR with role-based access, encryption and audit logging, hosted in UK cloud or on your own servers. There is no CPQ-specific regulator, but if you sell into healthcare or financial services, the relevant approval and documentation checks go into the quote workflow.