Reaction
React with one emoji.
An emoji reaction on a message the customer sent you, like a tap-and-hold reaction in the app. The sample sends ❤️.
to and the message ids are n8n expressions that read the WhatsApp Trigger right before this node ($json.messages[0].from / .id). For a manual test, replace them with a number and a message id.
The JSON body
HTTP Request → Body → JSON{ "messaging_product": "whatsapp", "recipient_type": "individual", "to": "{{ $json.messages[0].from }}", "type": "reaction", "reaction": { "message_id": "{{ $json.messages[0].id }}", "emoji": "❤️" }}Limits & common mistakes
Source (opens in a new tab)emojitakes the emoji itself or a Unicode escape such as\uD83D\uDE00.The target must be a message the customer sent you, less than 30 days old, in this chat and not deleted; otherwise error 131009 and nothing is delivered.
Source (opens in a new tab)You can't react to a reaction.
Source (opens in a new tab)You only get a "sent" status webhook, never delivered or read.
Source (opens in a new tab)A reaction can't carry
Source (opens in a new tab)context(no quoting).
How to set up the credential in n8n
- In n8n, open Credentials → Create credential and pick Header Auth.
- Fill in the two fields:NameAuthorizationValueBearer <your token>
- Open the pasted node. Authentication is already Generic → Header Auth; choose the credential you just made.
- Use a System User token from Meta Business settings; the token on the API Setup page expires within hours.Source (opens in a new tab)Source (opens in a new tab)
Your token lives in n8n only. I never ask for it.
Don't have time to build it? I'll build it for you.
Build it for meWhatsApp and n8n are trademarks of their owners. Pixtaha isn't affiliated with or endorsed by Meta or n8n.