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HubSpot explained by the engineers who build on it: the Hubs, the free CRM, how the platform works, its honest limits and who it is really for.

What HubSpot's Data Sync does well, where the free sync stops (custom objects, finance documents, transformations), and when a custom integration pays.

Integrations fail quietly: expired tokens, API changes, renamed properties. What reliable HubSpot integrations look like and who should own yours.

OAuth scopes, credential handling, middleware sub-processors and UK GDPR: the security questions to settle before connecting HubSpot to your other systems.

A practical source-of-truth model for HubSpot and your ERP: which system owns customers, orders, invoices and stock, and the write rules that stop data fights.

A buyer's checklist for choosing a HubSpot integration partner in the UK: accreditations, in-house engineers, fixed pricing, support and the red flags.

When standard HubSpot objects do not fit, sync external ERP, finance and operational data into HubSpot custom objects, built two-way and in real code.

How we cleared more than 20,000 duplicate matches from a roughly 800,000-contact HubSpot database without merging the wrong people, and stopped new duplicates forming.

HubSpot's native duplicate manager stops at 5,000 records and cannot prevent new duplicates. How an engineered, name-safe deduplication clears the backlog at scale and keeps it clean.

Two different people can share one phone number, and matching on email alone merges the wrong records. The name-gate method that merges HubSpot contacts safely.