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React to messages with emoji to acknowledge receipt or add context without sending a full reply.

React to a Message

The easiest way to react is using the reactions endpoint:

React Using Message Type

You can also send a reaction as a message by specifying the WhatsApp message ID:

Remove a Reaction

Send an empty string as the emoji to remove a reaction:

Specifications

You can only react to messages within the 24-hour conversation window.

Use Cases

  • Acknowledge message receipt
  • Quick approval/rejection indicators
  • Add emotional context
  • Non-intrusive confirmations