What This Is
We connect your business systems to HubSpot’s API so that contacts, companies, deals, and engagement data flow between your application and HubSpot CRM automatically. The integration handles contact sync, deal pipeline updates, custom property management, and webhook processing — replacing manual data entry and CSV imports with real-time, event-driven synchronisation.
This is not a HubSpot marketplace integration. We build custom integrations with HubSpot’s API that go beyond what native connectors provide — syncing data structures that do not have a one-to-one mapping, triggering deal stage changes based on events in your application, or enriching HubSpot records with data from systems that have no native HubSpot integration. When a lead completes a demo request on your platform, the contact is created in HubSpot with full context, a deal is opened in the right pipeline, and the sales team is notified — all through your application’s backend, not through form submissions or manual entry.
We build custom integrations with HubSpot’s API using the same production-grade patterns we apply to all our API work — proper OAuth flows, rate limit handling, retry logic, and queue-based processing within a Laravel backend.
When You Need This
HubSpot API integration is the right choice when your application needs to share data with HubSpot CRM beyond what native integrations support. Common triggers:
- You have a custom application that generates leads, customers, or deal data that needs to flow into HubSpot for your sales team
- You need bidirectional sync — changes in HubSpot (deal stage updates, contact property changes) reflected in your application, and vice versa
- You want custom properties in HubSpot populated from your application — subscription data, product usage metrics, or support history that enriches CRM records
- You are manually updating HubSpot with data from another system and need to automate the process
How We Work
HubSpot integration starts with mapping the data model — which objects (contacts, companies, deals, custom objects) need to sync, which properties are involved, and in which direction data flows. This mapping identifies where HubSpot’s standard properties are sufficient and where custom properties need to be created.
We authenticate using HubSpot’s OAuth 2.0 flow with automatic token refresh. The integration uses HubSpot’s v3 API with batch endpoints for bulk operations and single-object endpoints for real-time sync. Association management (linking contacts to companies, companies to deals) is handled as part of the sync logic.
Changes from HubSpot are captured through webhooks — HubSpot sends notifications when contacts, companies, or deals are created, updated, or deleted. Each webhook is processed in a queue job with deduplication logic, since HubSpot can send duplicate notifications. Conflict resolution rules determine which system wins when the same record is updated in both HubSpot and your application simultaneously.
What You Get
- Contact and company sync — records created, updated, and enriched bidirectionally between your application and HubSpot
- Deal pipeline automation — deals created and advanced through stages based on application events (signup, demo, purchase, renewal)
- Custom property management — properties created and populated in HubSpot from your application’s data (usage metrics, subscription details, support scores)
- Webhook processing — CRM changes in HubSpot reflected in your application in real time
- Association management — contacts linked to companies, deals linked to contacts, with custom association types where needed
- Batch sync — bulk data operations for initial migration and scheduled reconciliation
Technologies We Use
- HubSpot API v3 — Contacts, Companies, Deals, Custom Objects, Properties, Associations, and Webhooks
- HubSpot OAuth 2.0 — app-level authentication with scoped access and automatic token refresh
- Laravel — queue-based sync jobs, webhook controllers, and CRM service layer abstraction
- PostgreSQL — sync state tracking, ID mapping between systems, and conflict resolution logs
Related Systems
HubSpot integration connects CRM to the rest of your business — a lead management system that creates HubSpot contacts from form submissions, a client portal that syncs account data with CRM records, or a reporting dashboard that combines CRM pipeline data with financial metrics.
Talk to Us About CRM Integration
If you need HubSpot connected to your custom systems, get in touch and we will map the data model and build the sync.
