post
https://api.sintalk.com.br/v3/templates
Create a message template. content is read against the schema channel selects: text for sms, a file_id reference for voice, and for rcs one of the three shapes identified by their fields — text (text), card (card), or carousel (cards). Every file content references must already be uploaded and of a kind the slot accepts.
The {{variable}} placeholders found in content are extracted into variables; each send then supplies a value for every one of them, per recipient. name is unique per channel among live templates. Content, channel, and follow-up rules are fixed at creation — only name can be changed afterwards.