Redeliver webhook delivery

Queues the event of an earlier delivery for another delivery to the same endpoint, while the event is in the 30 day log and the endpoint is active. Sends no messages to contacts. Returns the new delivery.

POST /v1/webhook-deliveries/{delivery_id}/redeliver

Permission	`webhooks:write` (all permissions)
Risk	Write (no outside effect)
Idempotency-Key	Optional (how it works)
Safe to repeat	With the same Idempotency-Key the first answer comes back and nothing is done twice. Without a key a repeat is done again.
Rate limit class	`write` (120 requests per minute per key)
Confirmation	None
MCP tool	Not available in MCP
Since version	2026-10-25

#What it does

Changes data in your account. It does not send messages to contacts.
Acts on a connected outside system.

#Request

Header

Name	Required	Description
`Authorization`	yes	`Bearer <key>`
`Idempotency-Key`	no	A unique value for this operation, for example a UUID (1 to 255 visible ASCII characters).

Path parameters

Name	Type	Description
`delivery_id`	string	Delivery ID from the delivery log.

#Examples

curlPythonTypeScript

curl -X POST "https://api.smartchat.marketing/v1/webhook-deliveries/whd_7a1b2c3d4e5f40718293a4b5c6d7e8f9/redeliver" \
  -H "Authorization: Bearer $SMARTCHAT_API_KEY"

import os
import requests

response = requests.post(
    "https://api.smartchat.marketing/v1/webhook-deliveries/whd_7a1b2c3d4e5f40718293a4b5c6d7e8f9/redeliver",
    headers={"Authorization": "Bearer " + os.environ["SMARTCHAT_API_KEY"]},
)
response.raise_for_status()
print(response.json())

const response = await fetch("https://api.smartchat.marketing/v1/webhook-deliveries/whd_7a1b2c3d4e5f40718293a4b5c6d7e8f9/redeliver", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.SMARTCHAT_API_KEY}`,
  },
});
if (!response.ok) throw new Error(await response.text());
console.log(await response.json());

Response (202):

{
  "object": "webhook_delivery",
  "id": "whd_9b8a7c6d5e4f43218293a4b5c6d7e8f0",
  "endpoint_id": "whe_0f8c1a2e4b7d4c3e9a5b6d7e8f901234",
  "event_id": "evt_0f8c1a2e4b7d4c3e9a5b6d7e8f905678",
  "type": "contact.created",
  "attempt": 0,
  "status": "pending",
  "http_status": null,
  "error": null,
  "duration_ms": null,
  "next_attempt_at": "2026-10-25T09:50:00Z",
  "created_at": "2026-10-25T09:44:59Z",
  "finished_at": null
}

#Response

Status 202. Every response has the headers Request-Id, SmartChat-Version and X-RateLimit-*.

Name	Type	Description
`object`	string	Always "webhook_delivery". always `webhook_delivery`
`id`	string	Delivery ID (also sent in the SmartChat-Delivery-Id header).
`endpoint_id`	string	Endpoint that received or will receive the event.
`event_id`	string or null	Event ID (also in the event body as id). Null for test pings. up to 64 characters
`type`	string	Event type, for example contact.created. up to 60 characters
`attempt`	integer	Number of attempts made so far (maximum 9). 0 to 9
`status`	string	pending = waiting for the next attempt, sending = in progress, delivered = your server answered 2xx, failed = no more attempts. one of: `pending`, `sending`, `delivered`, `failed`
`http_status`	integer or null	HTTP status of the last attempt. Null if your server did not answer. 0 to 599
`error`	string or null	Short reason of the last failure, for example HTTP 500 or timeout. Never contains the body of your answer. up to 200 characters
`duration_ms`	integer or null	Duration of the last attempt in milliseconds. 0 to 3600000
`next_attempt_at`	string or null	When the next attempt is planned. Null if none is planned. up to 40 characters; format date-time
`created_at`	string	When the delivery was queued. up to 40 characters; format date-time
`finished_at`	string or null	When the delivery reached a final state. up to 40 characters; format date-time

#Errors

Code	Status	When
`idempotency_key_invalid`	400	The 'Idempotency-Key' header must be 1 to 255 visible ASCII characters.
`api_key_expired`	401	This API key has expired.
`api_key_invalid`	401	This API key is not valid.
`api_key_revoked`	401	This API key was revoked.
`authentication_required`	401	No API key was sent. Send 'Authorization: Bearer <key>'.
`insufficient_scope`	403	This key lacks a required permission.
`ip_not_allowed`	403	This IP address is not allowed for this key.
`delivery_not_found`	404	No webhook delivery with this ID exists in this account.
`conflict`	409	The state of the object does not allow this.
`idempotency_in_progress`	409	A request with this idempotency key is still running.
`idempotency_key_reused`	422	This idempotency key was already used with a different request.
`validation_failed`	422	A field is not valid.
`rate_limited`	429	Too many requests. Wait and try again.
`internal_error`	500	Something went wrong on our side.

All errors use one format.