---
title: 2029: Stickers can only be sent over iMessage | API Docs
description: A sticker reaction was sent to a chat that is not on iMessage.
---

Stickers can only be sent over iMessage. The target message belongs to a chat on SMS or RCS, neither of which supports peeling a sticker onto a message. This is an HTTP 409 error.

## Troubleshooting

- Send a standard tapback instead — `love`, `like`, `dislike`, `laugh`, `emphasize`, or `question` — which SMS and RCS do support
- [Check iMessage capability](/channel/imessage/guides/messaging/protocol-selection#protocol-capabilities/index.md) for the recipient before sending a sticker