---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/80105#article
headline: "80105: Short Code Already In Service"
url: https://www.twilio.com/docs/api/errors/80105
inLanguage: en
dateModified: 2026-06-08T12:04:59.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 80105: Short Code Already In Service

Log Level: WARNING

## Description

This warning occurs when you try to add a short code that is already associated with the same Messaging Service sender pool. Use the ShortCodes subresource to manage short codes on a Messaging Service.

### Possible causes

* You sent multiple requests to add the same short code to the Messaging Service.
* The short code was already added to the Messaging Service at an earlier time.
* Your application retried a previous add request after the short code was already associated with the Service.

### Possible solutions

* If the short code is already associated with the correct Messaging Service, no action is required.
* Check the Messaging Service sender pool before retrying the request. Review the Service in the Twilio Console or list the Service's short codes with the ShortCodes subresource.
* If you need to recreate the association, remove the existing short code from the Messaging Service and then add it again. Removing a short code from a Messaging Service does not cancel the short code from your account.
* Update your application logic to avoid duplicate create requests for the same short code.

#### Additional resources

* [ShortCodes subresource](/docs/messaging/api/services-shortcode-resource)
* [Messaging Services](/docs/messaging/services)
* [Get started with Messaging Services](/docs/messaging/tutorials/send-messages-with-messaging-services)