---
title: "Resend failed webhook deliveries"
method: POST
path: "/api/webhooks/deliveries/resend"
tags: ["Webhooks"]
---

# Resend failed webhook deliveries

`POST /api/webhooks/deliveries/resend`

## Request

- Base URL: `https://app.herondata.io`
- URL: `https://app.herondata.io/api/webhooks/deliveries/resend`
- Auth: API key in header `x-api-key`

Queues fresh attempts with each failed delivery's original data and meta. If next_retry_at is in the future, an automatic retry is still scheduled, so a manual resend may deliver the webhook twice. Receivers must handle duplicates. New attempts use each webhook's current URL, topic, and headers.

## Request body

- WebhookResendRequestSchema
  - `event_ids` string[], required

## Response `202`

Resends queued

- WebhookResendResponseSchema
  - `status` 'queued'

## Other responses

- `404`: A failed delivery was not found
- `409`: A webhook was deleted or disabled, or a stored payload cannot be resent
- `422`: event_ids is empty, invalid, or contains more than 50 IDs
- `429`: Resend rate limit exceeded

## Changes

- **2026-11-03** `bd8008e49534`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/herondata/apis/heron-data-api/changes/api/webhooks/deliveries/resend/post.md)

---

[API](https://skmtc.dev/herondata/apis/heron-data-api.md) - [All operations](https://skmtc.dev/herondata/apis/heron-data-api/llms.txt) - [OpenAPI document](https://skmtc.dev/herondata/apis/heron-data-api/revisions/1ec936e17fef?raw)