--- title: "Simple & Easy Notification Service overview" slug: "sens-overview" tags: ["simple easy notification service"] updated: 2026-10-08T06:49:06Z published: 2026-10-08T06:49:06Z canonical: "guide.ncloud-docs.com/sens-overview" --- > ## Documentation Index > Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt > Use this file to discover all available pages before exploring further. # Simple & Easy Notification Service overview Available in Classic and VPC Simple & Easy Notification Service (SENS) is an integrated notification service that provides, in a single service, the channels needed to deliver notification, authentication, and marketing messages to customers: text messages (SMS/LMS/MMS, international SMS, and 080 opt-out), KakaoTalk-based messages (AlimTalk and BrandMessage), and email (Mailer). You can send messages instantly through the console or API without building a separate message server or sending infrastructure. Note On September 17, 2026, [Simple & Easy Notification Service](https://ncloud.com/product/applicationService/sens) and [Cloud Outbound Mailer](https://ncloud.com/product/applicationService/cloudOutboundMailer) were integrated into a single service and are now provided under the name Simple & Easy Notification Service. For more information, see [Simple & Easy Notification Service integrations](/docs/en/sens-integrationguide). ## Simple & Easy Notification Service features Simple & Easy Notification Service offers these key features: ### SMS You can send Short Message Service (SMS) messages for short text content, Long Message Service (LMS) messages for long text content, and Multimedia Messaging Service (MMS) messages, which let you attach multimedia files such as images and photos. International SMS and the 080 opt-out service are also provided. ### Biz Message It provides AlimTalk and BrandMessage messages, which are sent through KakaoTalk channels. By using pre-approved templates, you can ensure reliable delivery rates and brand exposure. ### MAIL It reliably sends bulk emails for notification, informational, and marketing purposes, and supports scheduled sending and personalized content delivery using substitution tags. Note Most features provided in the console are also available through the SENS API, so you can connect SENS to your running services to automate message sending, delivery result checks, history queries, and more. ## Simple & Easy Notification Service user guide Use this guide to get the most out of Simple & Easy Notification Service. - [Simple & Easy Notification Service overview](/docs/en/sens-overview): Learn about the service and find helpful resources. - [Simple & Easy Notification Service prerequisites](/docs/en/sens-spec): View specifications, supported features, and pricing information. - [Simple & Easy Notification Service quickstart](/docs/en/sens-procedure): Follow a step-by-step guide through the entire process. - Getting started with Simple & Easy Notification Service: Learn how to start using the service. - [Manage subscriptions](/docs/en/sens-start): Subscribe to and mange your Simple & Easy Notification Service. - Using Simple & Easy Notification Service: Learn how to access Simple & Easy Notification Service. - Project: Learn about the interface of the **Project** menu and how to create and manage projects. - [Project interface](/docs/en/sens-projectscreen): Learn about the Project interface. - [Create and manage projects](/docs/en/sens-project): Create, edit, or delete projects. - SMS: Learn about SMS-related policies, the interface of the submenus under the **SMS** menu, and how to use SMS. - [Policy information](/docs/en/sens-smspolicy): Learn about related policies you should check out before using SMS. - [SMS interface](/docs/en/sens-smsscreen): Learn about the interface of the **Message**, **Reservation**, **Calling Number**, and **080 Block Call Service** menus under the **SMS** menu. - [Message](/docs/en/sens-smsmessage): Learn how to send SMS/LMS/MMS and view delivery history. - Reservation: Learn how to manage scheduled sending of SMS/LMS/MMS. - [Manage scheduled sending](/docs/en/sens-smsreservation): Learn how to view the SMS/LMS/MMS scheduled sending list and cancel scheduled sending. - [Calling Number](/docs/en/sens-callingno): Learn how to register, delete, or view calling numbers. - [080 Block Call Service](/docs/en/sens-blockcall): Learn how to apply for, cancel, or terminate the 080 opt-out service, and to register, view, or delete opt-out numbers. - Biz Message: Learn about the interface of the submenus under the **Biz Message** menu and how to use Biz Message. - [Biz Message interface](/docs/en/sens-bizmessage): Learn about the interface of the **KakaoTalk Channel**, **AlimTalk Template**, **AlimTalk Message**, **AlimTalk Reservation**, **BrandMessage Template**, **BrandMessage Message**, and **BrandMessage Reservation** menus under the **Biz Message** menu. - [KakaoTalk Channel](/docs/en/sens-ktchannel): Learn how to create, register, or manage a KakaoTalk Channel. - [AlimTalk Template](/docs/en/sens-attemplate): Learn how to register and manage AlimTalk templates. - [AlimTalk Message](/docs/en/sens-atmessage): Learn how to send AlimTalk messages and view delivery history. - AlimTalk Reservation: Learn how to manage scheduled sending of AlimTalk. - [Manage scheduled sending](/docs/en/sens-atreservation): Learn how to view the AlimTalk scheduled message list and cancel scheduled sending. - [BrandMessage Overview](/docs/en/sens-bmoverview): Learn about the KakaoTalk BrandMessage service. - [BrandMessage Template](/docs/en/sens-bmtemplate): Learn how to register and manage templates. - [BrandMessage Message](/docs/en/sens-bmmessage): Learn how to send BrandMessage messages and view delivery history. - BrandMessage Reservation: Learn how to manage scheduled sending of BrandMessage. - [Manage scheduled sending](/docs/en/sens-bmreservation): Learn how to view the BrandMessage scheduled message list and cancel scheduled sending. - MAIL: Learn about the interface of the submenus under the **MAIL** menu and how to use MAIL. - [Mailing list](/docs/en/cloudoutboundmailer-use-mail): Learn how to send bulk emails or view send history. - [Address book](/docs/en/cloudoutboundmailer-use-address): Learn how to manage recipient email addresses. - [Manage templates](/docs/en/cloudoutboundmailer-use-template): Learn to create and manage email templates. - [Unsubscribe mail list](/docs/en/cloudoutboundmailer-use-unsubscribe): Learn how to check and manage email addresses with opt-out settings. - [Send block list](/docs/en/cloudoutboundmailer-use-sendblock): Learn how to check and manage email addresses registered as blocked for sending by the system. - [Domain Management](/docs/en/cloudoutboundmailer-use-domain): Learn how to register and manage sender domains. - [Simple & Easy Notification Service permissions management](/docs/en/sens-subaccount): Manage accounts using NAVER Cloud Platform's Sub Account. - [Simple & Easy Notification Service glossary](/docs/en/sens-glossary): Find key terms and definitions. - [Simple & Easy Notification Service release notes](/docs/en/sens-releasenote): See documentation updates. ## Simple & Easy Notification Service related resources Beyond the user guide, these resources provide additional context and support for Simple & Easy Notification Service. Whether you're considering Simple & Easy Notification Service or need in-depth information for development, marketing, and other purposes while establishing data related policies, these resources can help: - Learn more about Simple & Easy Notification Service - [Simple & Easy Notification Service API guide](https://api.ncloud-docs.com/docs/en/sens-overview): Learn how to use the APIs for Simple & Easy Notification Service developers. - Cloud Outbound Mailer API, the predecessor of the MAIL service, will be available only until December 2027. For usage instructions, see the integrated guide (same as before). - [Ncloud user environment guide](/docs/en/environment-environment-1-1): Explore VPC and Classic environments and supported services. - [Pricing and features](https://www.ncloud.com/product/applicationService/sens): View pricing details and key capabilities. - [Latest announcements](https://www.ncloud.com/intro/news): Stay informed about service updates and news. - [FAQs](https://www.ncloud.com/support/faq/prod?categoryCode2=APP&categoryCode3=SV_0065): Get answers to common Simple & Easy Notification Service questions. - [Contact Support](https://www.ncloud.com/support/question/service): Get help if you can't find what you need in the user guide. - Learn about integrated services - [Sub Account user guide](/docs/en/subaccount-overview): Manage team access for Simple & Easy Notification Service.