Two-Way Odoo and HubSpot Sync for Quotes and Invoices in London (2026 Cost)

The verdict in three sentences

When quotes sit in HubSpot and invoices in Odoo, every won deal is re-keyed and the sales forecast never matches cash collected. An off-the-shelf connector (EUR 30 to 150 a month, about GBP 25 to 130) syncs contacts and sometimes orders, but a custom two-way integration at EUR 6,000 to 15,000 excl. VAT (about GBP 5,100 to 12,800) covers quotes, orders, invoices and payment status with your own rules. For a team of 6 sales reps, the usual gain is one day a week of data entry avoided and a pipeline that finally means something.

Where double entry really costs

The typical pattern in a London B2B industrial or services SME: reps qualify and price in HubSpot, the sales coordinator recreates the customer and order in Odoo, finance invoices in Odoo, and nobody pushes payment status back to HubSpot. The result: duplicate customer records, discounts applied differently, and a sales director forecasting revenue on deals that are won but not yet invoiced, or already overdue.

Standard connector or custom integration

The market offers Odoo-HubSpot connectors through the Odoo App Store, the HubSpot marketplace, or platforms such as Make, Zapier and n8n. They work as long as the model stays simple: contacts, companies and possibly orders without complex discounts. Once you have price lists, product variants, deposits or several companies in Odoo, custom becomes cheaper than patching.

What a EUR 6,000 to 15,000 integration includes

The low end covers contacts, companies, products and won quotes turned into Odoo orders. The high end adds invoices, payments, credit notes, multi-company and an error dashboard. An artificial intelligence layer can be added for EUR 1,500 to 3,500: automatic duplicate matching by name and address similarity, or a late-payment risk score shown in HubSpot based on Odoo payment history.

Mini case study

Tom, sales director of a 45-employee London SME selling materials handling equipment, manages 6 reps and a coordinator. Every week, 22 won deals are re-keyed into Odoo, i.e. 7 hours of work. He picks a custom integration at EUR 11,500 excl. VAT with EUR 90 a month of monitoring. Direct gain: 7 h × 46 weeks × EUR 38 fully loaded = EUR 12,236 a year. Indirect gain: seeing overdue invoices in HubSpot cuts average payment time by 10 days on EUR 4.2M revenue, freeing about EUR 115,000 of cash. First-year cost: EUR 12,580. The integration pays back in just over 12 months on data entry alone, much sooner once cash flow is counted.

FAQ

Is the official connector enough for an SME? Yes if you only sync contacts and companies, for EUR 30 to 150 a month. Once quotes, discounts and invoices need to flow, it quickly hits its limits and a EUR 6,000 to 15,000 integration becomes more reliable.

Which tool owns which data? Usually HubSpot owns contacts and deals, Odoo owns products, prices, orders and invoices. Setting this rule in a half-day workshop prevents 90% of sync conflicts.

Do we need Odoo Enterprise or Community? Both work through the XML-RPC or JSON-RPC API. Odoo Online (SaaS) restricts some custom modules, so check before quoting.

What happens during the initial data migration? The database is imported and deduplicated once, typically 5,000 to 20,000 contacts, in 3 to 5 days, with a merge report signed off by your teams.

Can we add AI later? Yes. Smart deduplication or a late-payment risk score can be added for EUR 1,500 to 3,500 once the flows are stable.

Let's scope your project. Tell us about your flows between HubSpot and Odoo: we will price the mapping, the two-way integration and data migration, for an indicative budget of EUR 6,000 to 15,000 excl. VAT and go-live in 4 to 7 weeks. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.