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API Reference

Bulk Create Data Source Records

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This endpoint is in beta and subject to change.

A beta revision header (2025-04-15.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.

Create a data source record job.

Custom objects is a paid feature in Klaviyo, only available to customers with a paid email plan. To request access to custom objects, submit this form.

Rate limits:
Burst: 3/s
Steady: 60/m

Scopes:
custom-objects:write

Body Params

Create a data source record job

data
object
required
Headers
string
required
Defaults to 2025-04-15.pre

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

Responses
202

Success

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