---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/83011#article
headline: "83011: A Super SIM with the specified Unique Name exists already"
url: https://www.twilio.com/docs/api/errors/83011
inLanguage: en
dateModified: 2026-03-11T22:03:37.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 83011: A Super SIM with the specified Unique Name exists already

Log Type: APPLICATION

Log Level: ERROR

## Description

Your Super SIM cannot be updated with the provided Unique Name because another Super SIM on your Account is already using it.

### Possible causes

* A Unique Name must be unique across all Super SIMs that belong to your Account. Two Super SIMs cannot have the same Unique Name.

### Possible solutions

* Specify an alternative Unique Name in your request.
* Change the Unique Name of the Super SIM already using the desired Unique Name to something else and then retry your request.