# Sinch API Messages Send Choice

> Send a choice/quick-reply message (buttons) via Sinch Conversation API

- Skill: `sinch/sinch-api-messages-send-choice` (Agent Skill)
- Install (CLI): `npx skillmds@latest add sinch/sinch-api-messages-send-choice`
- Raw SKILL.md: https://api.skillmd.com/api/skills/sinch/sinch-api-messages-send-choice/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- Author: sinch (https://skillmd.com/u/sinch)
- Updated: 2026-09-10
- Page: https://skillmd.com/skills/sinch/sinch-api-messages-send-choice

---


# Send Choice Message

Send a message with suggested actions (buttons or quick replies) to a recipient via the Sinch Conversation API. Supported on RCS, WhatsApp, and other interactive channels.

**IMPORTANT: Execute this command directly. Do NOT generate script files. Perform the API call immediately.**

## Input

- `--to` / `-t`: Recipient phone number (E.164) - required
- `--message` / `-m`: Main message text shown above choices - required
- `--choices` / `-c`: Comma-separated list of choice labels (e.g., "Yes,No,Maybe") - required
- `--channel` / `-C`: Channel (RCS, WHATSAPP, SMS) - optional, default RCS for best support

Arguments: $ARGUMENTS

## Instructions

**Execute these steps directly - do not write code or scripts:**

0. If $ARGUMENTS empty: ask for recipient, message text, and choice labels (comma-separated). Otherwise parse.

1. Validate: --to (E.164), --message (non-empty), --choices (at least one, comma-separated). --channel optional, default RCS.

2. Try MCP tool for choice/suggested-reply message if available. On success display result and exit.

3. If MCP not available: get CONVERSATION_* env vars. If missing, report "Sinch API is not configured."

4. Build message.choice_message: text_message with the main message; choices array - each choice with text_message.text (label) and postback_data (e.g. slug of label). Recipient via channel_identities.

5. POST https://{region}.conversation.api.sinch.com/v1/projects/{projectId}/messages:send with OAuth2, body: app_id, recipient, message.

6. On success: "✅ Choice message sent!" with message ID. Handle errors clearly.

7. Handle all errors gracefully.

## Examples

```
/sinch-api-messages-send-choice --to=+14155551234 --message="How can we help?" --choices="Sales,Support,Feedback"
/sinch-api-messages-send-choice -t +14155551234 -m "Confirm order?" -c "Yes,No"
```

## API Reference

- **MCP Tool**: `mcp__sinch__send-choice-message` (if available)
- **API Endpoint**: POST /v1/projects/{projectId}/messages:send
- **Message type**: choice_message (text_message + choices)
- **Documentation**: https://developers.sinch.com/docs/conversation/message-types

## Notes

- Choice count and layout vary by channel (e.g. RCS supports more buttons).
- postback_data is sent to your webhook when user taps a choice.