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Developer PreviewThis documentation describes the upcoming 1Funnel External Integration API.The documented API endpoints and authentication services are not yet available for public integration.You can explore the API specifications, request and response schemas, webhook events, and integration guides.Sandbox and production availability will be announced separately.
Template operations live under /sms/templates. Writes require sms.template.write; reads require sms.template.read. When sending with a template, the platform pins an immutable template revision at durable acceptance. Later template edits do not rewrite already-accepted messages.