# 30042: Alphanumeric Sender ID used to send this message is generic or not authorized to be used by this account

Log Type: CARRIER

Log Level: ERROR

## Description

You sent a message from an Alphanumeric Sender ID that is generic or not authorized to be used by your account. It looks like the Sender ID you used is blocked for use in that country—often because it's flagged as a generic or suspicious Sender ID or you are not authorized to use it.

### Possible causes

You sent a message from an Alphanumeric Sender ID that is generic or not authorized to be used by your account. It looks like the Sender ID you used is blocked for use in that country—often because it's flagged as a generic or suspicious Sender ID or you are not authorized to use it.

### Possible solutions

* Choose a different Alphanumeric Sender ID that is not generic but relates to your brand.
* If it's not generic and you have a legitimate reason to use the Sender ID, request authorization to use it through [this form](https://console.twilio.com/us1/develop/phone-numbers/sender-ids/applications/create).
* Visit our [SMS Guidelines](https://www.twilio.com/en-us/guidelines/sms) to learn more about the destination country's best practices and compliance requirements for the use of Alphanumeric Sender IDs.