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API Reference

Update Form

🚧

This endpoint is in beta and subject to change.

A beta revision header (2026-07-15.pre) is required to use our beta APIs. Klaviyo APIs in beta are not intended for use in production. See our versioning and deprecation policy for more information.

Update a form.

Only submitted attributes change, and definition replaces the stored
definition. Live versions and form lifecycle fields cannot be edited.

Rate limits:
Burst: 10/s
Steady: 150/m

Scopes:
forms:write

OpenAPI Spec

Path Params
string
required

The ID of the form.

Query Params
fields[form]
array of strings
fields[form]
Body Params

Update a form. Omitted attributes keep their current values.

data
object
required
Headers
string
required
Defaults to 2026-07-15.pre

API endpoint revision (format: YYYY-MM-DD[.suffix])

Responses

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Response
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application/vnd.api+json