---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/61009#article
headline: "61009: Add-ons: Could not fulfill request with available data"
url: https://www.twilio.com/docs/api/errors/61009
inLanguage: en
dateModified: 2026-06-08T11:29:20.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 61009: Add-ons: Could not fulfill request with available data

Log Level: ERROR

## Description

This error occurs when Twilio cannot build a valid outbound request for a Marketplace Add-on because one of the Add-on request fields could not be interpolated from the data available for that invocation. The resulting value is invalid for a URL, header, or another request parameter, so Twilio cannot execute the Add-on request.

### Possible causes

* A required Add-on value was missing from the data sent for that invocation. For Lookup Add-ons, run-time values must be passed with `AddOns.<unique_name>.<parameter_name>`.
* One or more configured Add-on fields resolved to an invalid URL, header value, or request parameter after Twilio substituted the available data.
* The installed Add-on configuration does not match the parameters required by that Listing or by the enabled extension for the Twilio product you are using.

### Possible solutions

* Review the Add-on's configuration in Console and confirm that every required parameter is present and formatted exactly as the Listing expects. Use the Listing's Documentation tab to verify the supported products and required configuration parameters.
* If you invoke the Add-on through Lookup, include every required run-time field with `AddOns.<unique_name>.<parameter_name>` and verify that each value can resolve into a valid request field.
* Check that the correct extension is enabled for the Twilio product flow where you expect the Add-on to run. Update the installed Add-on or extension settings if needed, then test the request again.
* If the error continues, contact Twilio and include the `request_sid`, Installed Add-on SID, Add-on SID, and Add-on unique name from the API response or callback so Twilio can trace the failed Add-on request.

#### Additional resources

* [How to Use Marketplace Listings](/docs/marketplace/listings/usage)
* [InstalledAddOns Resource](/docs/marketplace/api/installed-add-ons)
* [Listings Overview](/docs/marketplace/listings)