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Hello WhatsApp API

Reply to a message

Any message type can be sent as a reply that quotes an earlier message, by adding context at the top level of the request, alongside type and the type’s own object.

Example

Section titled “Example”
Terminal window
curl -X POST "$HELLO_API_URL/v1/<your-phone-number-id>/messages" \
  -H "Authorization: Bearer $HELLO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "+919999999999",
    "context": { "message_id": "wamid.HBgMOTE5ODc2NTQzMjEwFQIAEhggQzY4RUEzNzBBOEVBNDQ1QjhBRjc5RUY4RUFCNUIwQzQA" },
    "type": "text",
    "text": { "body": "Yes, that one is back in stock." }
  }'

Fields

Section titled “Fields”
Field Type Required Description
context.message_id string Yes The wamid of the message being replied to

context works with every message type, including template. WhatsApp shows the quoted message above the new one; if the original message can no longer be found, it’s sent as a normal, unquoted message.

Common errors

Section titled “Common errors”

Same as the message type being sent — see Send a message. An unknown or too-old message_id doesn’t fail the send; WhatsApp just sends it without the quote.