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This endpoint is in beta and subject to change.

A beta revision header (2024-07-15.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.

Create universal content. Only text blocks, which can include text or HTML, are supported at this time.

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

Scopes:
templates:write