Simple Message Notification
Simple Message Notification
- What's New
- Function Overview
- Service Overview
- Getting Started
-
User Guide
- Topic Management
- Subscription Management
- Message Template Management
- SMN Operation Recording
- Logs
- Permissions Management
- Quotas
- Appendix
- API Reference
- SDK Reference
-
FAQs
- What Are the Advantages of SMN?
- What Protocols Does SMN Support?
- How Is SMN Billed?
- What Are the Requirements for an SMN Topic Name?
- How Many Topics Can I Create?
- How Many Subscriptions Can Be Added to a Topic?
- How Many Messages Can Be Published to a Topic?
- How Many Message Templates Can I Create?
- What Are the Limitations on SMS Messages?
- Can I Add Subscriptions Using Multiple Protocols to a Topic?
- Can a Topic Creator Change Subscription Protocols in a Topic?
- Can I Change a Subscription Endpoint for a Topic?
- Can I Delete a Published Message?
- Does SMN Ensure That Messages Are Received by Subscription Endpoints?
- Will a Subscriber Receive the Same Message Multiple Times?
- Why Do Subscribers Fail to Receive Messages After I Publish Messages to a Topic?
- What Can I Do When Pictures in an Email Message Cannot Be Displayed?
- How Do I Obtain My Account ID?
- How Does DingTalk, Lark, or WeCom Chatbot Obtain Subscription Endpoints?
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Help Center/
Simple Message Notification/
User Guide/
Topic Management/
Publishing a Message/
Introduction
Introduction
Updated on 2024-10-12 GMT+08:00
SMN enables you to publish messages in the following formats:
- Text
- JSON
- Template
After you publish a message to a topic, SMN will deliver the message to all confirmed subscription endpoints in the topic.
If an SMS message exceeds 490 characters, the message may be intercepted by operators. Messages sent to SMS endpoints cannot contain square brackets ([]).
You must ensure that firewall policies of the HTTP or HTTPS endpoints allow SMN to send messages over the Internet. An SMN HTTP or HTTPS message consists of a message header and body. For details, see HTTP or HTTPS Message Format.
Parent topic: Publishing a Message
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