---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/21608#article
headline: "21608: Upgrade and create an approved primary compliance profile to reach unverified numbers"
url: https://www.twilio.com/docs/api/errors/21608
inLanguage: en
dateModified: 2026-08-17T10:13:35.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 21608: Upgrade and create an approved primary compliance profile to reach unverified numbers

Log Level: ERROR

## Description

You have attempted to send a message to an unverified phone number while using a trial account or an account without an approved primary compliance profile (PCP).

To prevent spam, trial accounts and accounts without an approved PCP can only send messages to phone numbers you've verified with Twilio. You must upgrade your account and submit an approved primary compliance profile to remove this restriction.

### Possible causes

* You attempted to send a message to a phone number that has not been verified on your trial account.
* Your upgraded account doesn't have an approved primary compliance profile, which is required for unrestricted messaging.

### Possible solutions

* Trial account: Verify the phone number you wish to reach via the Twilio Console. See [Verified recipients](/docs/usage/trials#verified-recipients) for details on trial verification limits. *Note that you will need access to this device to receive the call or text with your verification code.*
* [Upgrade your account](/docs/usage/trials#upgrade-your-account) and create an [approved primary compliance profile](/docs/trust-hub/profiles/primary-compliance-profiles) to remove this restriction or add [Verified caller IDs](https://1console.twilio.com/us1/develop/phone-numbers/manage/verified) to continue testing.