Update a custom event property
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Update a custom event property
with HubSpot
Works with AI assistants
Use HubSpot: its Hubspot Basic API lets you update a custom event property in a single step (PATCH /events/v3/2026-09/event-definitions/{eventName}/property/{propertyName}). HubSpot also has an MCP server, so an AI assistant like Claude or ChatGPT can do it for you. capabilities.work can help you get signed up and connected.
- Can I relabel or hide a property on a custom event?
- How do I change the options of a custom event field?
Say it to your AI assistant
- Relabel property {propertyName} on event {eventName} to {label}.
- Hide field {propertyName} of custom event {eventName} ({hidden}).
For your developer
PATCH /events/v3/2026-09/event-definitions/{eventName}/property/{propertyName} in Hubspot Basic API. Full spec on APIs.io.