---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/59103#article
headline: "59103: Resource Already Exists"
url: https://www.twilio.com/docs/api/errors/59103
inLanguage: en
dateModified: 2026-08-18T11:08:51.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 59103: Resource Already Exists

Log Type: APPLICATION

Log Level: ERROR

## Description

A `Rule` with the same match key (the combination of `matchType` and `value`, such as the same URL prefix) already exists for this account.

### Possible causes

* A `POST /v2/Webhooks/Rules` request was made with a `matchType`/`value` pair that duplicates an existing `Rule`.

### Possible solutions

* List existing `Rules` (`GET /v2/Webhooks/Rules`) to find the conflicting rule.
* If you intend to change where that pattern routes, `PATCH` the existing `Rule`'s `settings` instead of creating a new one.
* If you intend to replace it, delete the existing `Rule` first, then create the new one.