---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/520001#article
headline: "520001: Observation creation failed"
url: https://www.twilio.com/docs/api/errors/520001
inLanguage: en
dateModified: 2026-04-01T03:32:01.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 520001: Observation creation failed

Log Type: TWILIO

Log Level: ERROR

## Description

System experienced an interruption while attempting to store an observation.

### Possible causes

* Temporary interruption of observation creation

### Possible solutions

* Observation Creation delayed. Note that some observations could temporarily reflect an older state.