Creates a channel and links it to an existing campaign along with template data, tokens used in the trigger and output platform.

The tokens field supports two formats:

Standard format (array): a flat array of token objects. Suitable for non-carousel templates.

V1.1 component format (required for carousel): a structured object with version: "1.1" and a components array. Each component represents a section of the template (header, body, buttons or carousel). For carousel templates, the carousel component contains a cards array, where each card has its own set of components (headery, body, buttons) with individual parameters.