tags:
  - Messages
operationId: create-a-new-message-in-a-conversation
summary: Create New Message
description: |
  Create a new message in the conversation.
  
  ## WhatsApp Template Messages
  
  For WhatsApp channels, you can send structured template messages using the `template_params` field. 
  Templates must be pre-approved in WhatsApp Business Manager.
  
  ### Example Templates
  
  **Text with Image Header:**
  ```json
  {
    "content": "Hi your order 121212 is confirmed. Please wait for further updates",
    "template_params": {
      "name": "order_confirmation",
      "category": "MARKETING",
      "language": "en",
      "processed_params": {
        "body": {
          "1": "121212"
        },
        "header": {
          "media_url": "https://picsum.photos/200/300",
          "media_type": "image"
        }
      }
    }
  }
  ```
  
  **Text with Copy Code Button:**
  ```json
  {
    "content": "Special offer! Get 30% off your next purchase. Use the code below",
    "template_params": {
      "name": "discount_coupon",
      "category": "MARKETING",
      "language": "en",
      "processed_params": {
        "body": {
          "discount_percentage": "30"
        },
        "buttons": [{
          "type": "copy_code",
          "parameter": "SAVE20"
        }]
      }
    }
  }
  ```
security:
  - userApiKey: []
  - agentBotApiKey: []
requestBody:
  required: true
  content:
    application/json:
      schema:
        $ref: '#/components/schemas/conversation_message_create_payload'
responses:
  '200':
    description: Success
    content:
      application/json:
        schema:
          allOf:
            - $ref: '#/components/schemas/generic_id'
            - $ref: '#/components/schemas/message'
  '404':
    description: Conversation not found
    content:
      application/json:
        schema:
          $ref: '#/components/schemas/bad_request_error'
  '403':
    description: Access denied
    content:
      application/json:
        schema:
          $ref: '#/components/schemas/bad_request_error'