---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/60390#article
headline: "60390: Factor not found"
url: https://www.twilio.com/docs/api/errors/60390
inLanguage: en
dateModified: 2026-06-08T12:04:59.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 60390: Factor not found

Log Type: APPLICATION

Log Level: ERROR

## Description

This error occurs when a Verify request references a Factor that cannot be found for the specified `ServiceSid`, `identity`, and `FactorSid` or Factor `sid`. A Factor belongs to an Entity inside a Verify Service, and Factors are used by Verify Push and Verify TOTP.

### Possible causes

* The request includes a `FactorSid` or Factor `sid` that does not match an existing Factor.
* The Factor exists under a different `identity` or a different `ServiceSid`. Factor operations are scoped to both the Verify Service and the Entity identity.
* The Factor was deleted before you tried to fetch it, update it, delete it, or use it to create a Challenge.
* The Factor was never verified and was automatically deleted 1 to 24 hours after creation.

### Possible solutions

* Confirm that you are sending the correct `ServiceSid`, the same immutable `identity` value used when the Factor was created, and the correct `FactorSid` or Factor `sid`.
* Fetch or list the Factors for the Entity and use the returned Factor `sid` from the Verify API response.
* If you are creating a Challenge, pass the `FactorSid` of an existing Factor for that Entity.
* If the Factor was deleted or aged out while still unverified, create a new Factor and complete verification before using it again.

#### Additional resources

* [Factor Resource](/docs/verify/api/factor)
* [Entity Resource](/docs/verify/api/entity)
* [Challenge Resource](/docs/verify/api/challenge)