# 22118: Invalid Verification Document SID

Log Level: ERROR

## Description

The Verification Document SID specified is not a valid identity document identifier.

### Possible causes

* The Verification Document SID is not a 34-character string that is prefixed with "RI".
* The identity document represented by the Verification DocumentSID is not of type "phone-bill".
* The identity document represented by the Verification Document SID does not exist anymore or does not belong to your account.

### Possible solutions

Please specify a Verification Document SID you've created in your [Account Dashboard](https://www.twilio.com/console/phone-numbers/identities).