샌드고 쿡북 — 카카오 알림톡·문자 발송 예제

From issuing an access key to sending a Kakao Alimtalk, with working code in Node.js, Python, PHP, Laravel, Java and Go.

Pick the organisation, issue API keys, register sender numbers and templates from a coding agent. Everything except topping up credit works without the console.

Kakao Alimtalk, Kakao Brand Message and SMS/LMS/MMS differ in what content they allow, what they cost and what you must set up first. Which to pick, by situation.

Pick the right Sendgo package for PHP, Laravel, Symfony, WordPress, Node.js, Next.js, NestJS, Python, Django, FastAPI, Java, Spring Boot, Go, Ruby, Rails, .NET, ASP.NET Core or Flutter.

Exchange an accessKey and secretKey for a bearer token, and call the Sendgo API with it. Differences between v1 and v2, token caching, and the 401/403 codes.

Korean law requires the caller ID to be pre-registered. How to register an SMS sending number and connect a Kakao channel, and where registrations usually get rejected.

일반 발송 승인이 완료된 이메일 서비스입니다. 발신 인증과 앱의 발송 가능 상태를 확인하고 SMTP, HTTP API와 자동화 수신함을 연동하세요.

Send Kakao Alimtalk with an approved template code. Runnable code for Laravel, Node.js, Python, PHP, Java, Go, Ruby and .NET, plus every required field and why sends fail.

Send Korean SMS (90 bytes), LMS (long text) and MMS (with images) through Sendgo. Type selection, byte counting, verification-code patterns and advertising rules.

Send Brand Messages to channel friends, non-friends, or every consenting friend at once. How targeting splits the request path, and when to keep using the Friendtalk endpoint.

Use replaceSms so a text message goes out when the Alimtalk cannot be delivered. Required fields, cost implications, and the mistake that silently sends nothing.

Send one template to many recipients with different values each, in batches. Batch sizing, partial failures, queue patterns and the data hygiene that prevents most incidents.

Send at a specific time with scheduleType SCHEDULED. Timestamp format, the KST timezone trap, and how scheduling interacts with the advertising night ban.

How Kakao Alimtalk template review works, why informational-only matters, how to lay out variables, and the wordings that get rejected.

Register Kakao channels, submit Alimtalk templates for review, file sender numbers, and sync opt-outs without ever sending anyone to sendgo.io. Includes webhook delivery of review outcomes.

Every error code returned by the Sendgo send endpoints, and how to tell a failure worth retrying from one that will fail identically every time.

Shorten long URLs to fit inside an SMS and measure who clicked. Creating short links, reading click stats, and splitting stats per campaign.

What Korean law requires of promotional SMS and Kakao messages, and how to enforce it in code: the (광고) prefix, a free opt-out, and no sending between 21:00 and 08:00 KST.

What happens to existing Friendtalk code now that the channel has ended, when you must migrate to Brand Message, and the one case where the Friendtalk endpoint is still the right call.