v2
latestOpenAPI 3.1.02026-08-075421692.0 MBMessages
Add reaction
Add an emoji reaction to a message. Platform support:
- Telegram: Supports a subset of Unicode emoji reactions
- WhatsApp: Supports any standard emoji (one reaction per message per sender)
- Instagram and Facebook Messenger: Any standard emoji, subject to Meta's 24h messaging window
- Slack: The emoji must have a Slack name (e.g. :thumbsup:); unnamed characters return 400
- All others: Returns 400 (not supported)
post/v1/inbox/conversations/{conversationId}/messages/{messageId}/reactions
Path parameters
conversationIdstring required
The conversation ID
messageIdstring required
The platform message ID to react to
Request body
Example request
{
"emoji": "👍"
}Response
Reaction added