Set a validation rule on a property
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Set a validation rule on a property
with HubSpot
Works with AI assistants
Use HubSpot: its Hubspot Basic API lets you set a validation rule on a property in a single step (PUT /crm/property-validations/2026-09/{objectTypeId}/{propertyName}/rule-type/{ruleType}). 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 require a property to match a format or length?
- How do I turn on normalization for a validated field?
Say it to your AI assistant
- Set the {ruleType} rule on {objectTypeId} property {propertyName} with arguments {ruleArguments}.
- Apply rule {ruleType} to field {propertyName} of {objectTypeId} using {ruleArguments}, normalizing ({shouldApplyNormalization}).
For your developer
PUT /crm/property-validations/2026-09/{objectTypeId}/{propertyName}/rule-type/{ruleType} in Hubspot Basic API. Full spec on APIs.io.