---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/18647#article
headline: "18647: LOA Signer Invalid"
url: https://www.twilio.com/docs/api/errors/18647
inLanguage: en
dateModified: 2026-06-30T17:34:09.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 18647: LOA Signer Invalid

Log Type: TWILIO

Log Level: ERROR

## Description

Your LOA was rejected because the signer is not listed as an active director or officer on the Business Registration Extract. Have an authorized officer sign it.

### Possible causes

* The person who signed the LOA is a senior employee such as a general manager, legal counsel, or finance director who is not formally listed as a director or officer in the company registry.
* The LOA was signed by a director who has since resigned and been removed from the registry.
* The signer is listed on a related entity's registry but not on the specific registering entity's extract.
* The extract submitted is outdated and does not reflect the current officer list.
* The name on the LOA signature does not exactly match the name as it appears on the extract.

### Possible solutions

* Identify a person unambiguously listed as an active director or officer on the most current Business Registration Extract and have them re-sign the LOA.
* Verify the signer's status directly in the relevant national business registry — do not rely on internal titles alone.
* Obtain a current Business Registration Extract to confirm who is presently listed as an active officer.
* Ensure the signer's full legal name on the LOA matches exactly how their name appears in the registry entry, including all surnames and initials.
* If the only individuals with officer status are unavailable, consider filing an updated officer appointment with the registry.
* Contact trusthub-verify@twilio.com with documentation of the signer's officer status (such as a board resolution or certificate of incumbency) if there is a discrepancy.