What distinguishes a HubSpot-built integration from a third-party integration?

In the HubSpot Data Integration certification, the distinguishing factor is that a HubSpot-built integration is maintained and supported directly by HubSpot, whereas third-party integrations are managed by the external developers who created them. This distinction is critical for troubleshooting and long-term stability, as native integrations are built to evolve alongside HubSpot’s core platform updates, with official support available through HubSpot's standard help channels. In contrast, third-party integrations—while often high-quality and available in the App Marketplace—rely on the independent vendor for technical updates, bug fixes, and user documentation, regardless of whether the integration utilizes custom objects or requires specialized coding.