---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/61005#article
headline: "61005: Add-ons: Bad request"
url: https://www.twilio.com/docs/api/errors/61005
inLanguage: en
dateModified: 2026-06-08T11:29:20.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 61005: Add-ons: Bad request

Log Level: ERROR

## Description

This error occurs when a Marketplace Add-on provider returns an HTTP `4xx` response for a request Twilio sent on your behalf. The provider received the request but rejected it because the request data, Add-on configuration, or authorization details did not meet the Listing's requirements.

### Possible causes

* The Add-on was invoked with missing, invalid, or incorrectly formatted input.
* A required runtime parameter was not passed in the expected `AddOns.<unique_name>.<parameter_name>` format for Lookup integrations.
* The Listing was installed but not fully configured for the Twilio product or usage point you are using.
* The Listing requires credentials, account identifiers, or other configuration values that are missing, expired, or invalid.
* The Listing partner rejected the request because your account or configuration is not authorized to use that feature.

### Possible solutions

* Open the Listing in Console and verify that the Configure tab is complete, including the enabled usage points and any required configuration parameters.
* If you invoke the Listing from Lookup, confirm that you pass the Add-on unique name in `AddOns` and include any required runtime fields in `AddOns.<unique_name>.<parameter_name>`.
* Review the Listing's documentation in Console and make sure the values you send match the required formats and allowed values for that provider.
* Verify that any credentials or account details stored for the Listing are valid and still authorized on the partner's platform.
* Retry the request after correcting the input or configuration. If the request still fails, contact the Listing partner and include the Request SID, Installed Add-on SID, and Add-on unique name from the failed response or callback.

#### Additional resources

* [How to Use Marketplace Listings](/docs/marketplace/listings/usage)
* [Marketplace Listings Overview](/docs/marketplace/listings)
* [Twilio API requests](/docs/usage/requests-to-twilio)