---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/59100#article
headline: "59100: Resource Is Still In Use"
url: https://www.twilio.com/docs/api/errors/59100
inLanguage: en
dateModified: 2026-08-18T11:08:51.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 59100: Resource Is Still In Use

Log Type: APPLICATION

Log Level: ERROR

## Description

The resource cannot be deleted because it is still referenced by another resource. This error is returned when deleting a `SharedKey`, `AuthProfile`, or `Setting` that is still in use.

### Possible causes

* Deleting a `SharedKey` while one or more `Settings` still reference it for signature validation.
* Deleting an `AuthProfile` while one or more `Settings` still reference it for authentication.
* Deleting a `Setting` while one or more `Rules` still route traffic to it.

### Possible solutions

1. List the resources that depend on the one you're trying to delete:
   * For a `SharedKey`: `GET /v2/Webhooks/Settings?sharedKeyId={id}`
   * For an `AuthProfile`: `GET /v2/Webhooks/Settings?authProfileId={id}`
   * For a `Setting`: `GET /v2/Webhooks/Rules?settingId={id}`
2. Update or delete each dependent resource so it no longer references the one you want to remove.
3. Retry the delete request.