---
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"@id": https://www.twilio.com/docs/api/errors/54458#article
headline: "54458: Invalid List Item index"
url: https://www.twilio.com/docs/api/errors/54458
inLanguage: en
dateModified: 2026-03-11T20:43:38.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 54458: Invalid List Item index

Log Level: ERROR

## Description

The List Item index must be a non-negative integer.

### Possible causes

* The value supplied by the List Index parameter contains a non-integer or a negative integer.

### Possible solutions

Confirm that a valid List Index parameter is being passed in your request.