# E15057 — WhatsAppInReplyToNotFound

The message this send quotes is not one this workspace holds.

- **HTTP status**: `422`
- **Type**: `validation_error`
- **Name**: `WhatsAppInReplyToNotFound`

## What to do

in_reply_to_message_id must name a WhatsApp message in this workspace. List your messages to find the right id. A message can be quoted for 15 days, the window provider ids are kept for, and one older than that can no longer be quoted however long the message itself is retained.

Operations that resolve this:

- [List WhatsApp messages](/docs/api/reference/list-whatsapp-messages)

## Related

- [E15xxx — WhatsApp sending & delivery](/docs/api/errors/E15xxx): every code in this range
- [Errors](/docs/api/errors): the full wire contract, status mapping, and error catalog
- [Error handling](/docs/guides/errors): branching on `type` and `code`, validation details, and `vendor_code`