# 52182: Messaging Service not specified

Log Level: ERROR

## Description

In order to send SMS messages with Notify you need to configure a [Messaging Service](/docs/messaging/services) and connect it with your Notify Service. Messaging Services make it easy to build SMS application by automatically selecting an optimal From phone number from pool you can define.

### Possible causes

* MessagingServiceSid in Notify Service is not specified

### Possible solutions

* Configure a Messaging Service in the [console](/console/notify/services) or via the [REST API](/docs/notify/api/service-resource#update-a-service). You can create a new Messaging Service in the [console](https://www.twilio.com/console/sms/services) or via the [REST API](/docs/messaging/api/service-resource).