---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/48026#article
headline: "48026: Outgoing conversation: Invalid proxy address"
url: https://www.twilio.com/docs/api/errors/48026
inLanguage: en
dateModified: 2026-03-11T20:01:16.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 48026: Outgoing conversation: Invalid proxy address

Log Type: APPLICATION

Log Level: ERROR

## Description

A conversation could not be created because the provided Twilio proxy address for the Frontline user was invalid.

### Possible causes

* The outgoing conversation callback returned an invalid Twilio proxy number or no number at all.

### Possible solutions

* Make sure that the `proxy_address` value returned from the Outgoing Conversation callback is present and properly formatted in [E.164 format](/docs/glossary/what-e164), including any channel prefixes if relevant.
  * Check out the [docs](/docs/frontline/outgoing-conversations) on how to create outgoing conversations.