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SendMessage creates and sends a message via channel.

POST 
/api/v1/engagements/:engagementId/messages/send

This is the primary method for agents to send messages to contacts. The message is created, queued, and delivered through the appropriate channel based on engagement configuration.

Delivery Process​

  1. Message created with status PENDING
  2. Routed to channel provider (WhatsApp, SMS, etc.)
  3. Status updated via webhook callbacks

Errors​

  • NOT_FOUND: Engagement does not exist
  • FAILED_PRECONDITION: Channel not configured or inactive
  • PERMISSION_DENIED: Caller lacks message:send permission

Request​

Responses​

A successful response.