# 21701: The Messaging Service does not exist

Log Type: APPLICATION

Log Level: ERROR

## Description

The Messaging Service resource you are referencing does not exist or does not match the `Account SID` in the API Request.

### Possible causes

* The Messaging Service resource you are referencing does not exist.
* The Messaging Service resource you are referencing does not belong to the Account SID in your API Request.

### Possible solutions

* Double check the `Messaging Service SID` and `Account SID` parameters that you are using. You can find the Messaging Service SID in the [Twilio Console](https://console.twilio.com/us1/develop/sms/services) (beginning with MG).