- What's New
- Function Overview
- Service Overview
- Getting Started
-
User Guide
- Topic Management
- Subscription Management
- Message Template Management
- SMN Operation Recording
- Cloud Eye Monitoring
- Logs
- Permissions Management
- Quotas
- Appendix
- Best Practices
-
API Reference
- Before You Start
- API Overview
- Calling APIs
- Getting Started
- APIs
- Examples
- Permissions Policies and Supported Actions
- Public Parameters
- Out-of-Date APIs
- Appendix
- 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?
- Does SMN Always Use the Same Phone Number or Sender Name to Send SMS Messages?
- How Do I Obtain My Account ID?
- How Does a DingTalk, Internal DingTalk, Lark, or WeCom Chatbot Obtain Subscription Endpoints?
- Videos
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More Documents
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User Guide (ME-Abu Dhabi Region)
- Overview
- Getting Started
- Topic Management
- Subscription Management
- Message Template Management
- SMN Operation Recording
- Logs
- Permissions Management
- Quotas
-
FAQs
- What Are the Advantages of SMN?
- What Protocols Does SMN Support?
- 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?
- 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?
- Appendix
- Change History
- API Reference
-
User Guide (Paris Region)
- Overview
- Getting Started
- Topic Management
- Subscription Management
- Message Template Management
- SMN Operation Recording
- Logs
- Quotas
-
FAQs
- What Are the Advantages of SMN?
- What Protocols Does SMN Support?
- 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?
- Appendix
- Change History
- API Reference (Paris Region)
-
User Guide (Kuala Lumpur Region)
- Overview
- Getting Started
- Topic Management
- Subscription Management
- Message Template Management
- SMN Operation Recording
- Logs
- Permissions Management
- Quotas
-
FAQs
- What Are the Advantages of SMN?
- What Protocols Does SMN Support?
- 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?
- 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?
- Appendix
- Change History
- API Reference (Kuala Lumpur Region)
-
User Guide (Ankara Region)
- Overview
- Getting Started
- Topic Management
- Subscription Management
- Message Template Management
- Permissions Management
- Quotas
-
FAQs
- What Are the Advantages of SMN?
- What Protocols Does SMN Support?
- 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?
- 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?
- Appendix
- Change History
- API Reference (Ankara Region)
-
User Guide (ME-Abu Dhabi Region)
- General Reference
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Creating a Topic
Scenarios
A topic is a specified event to publish messages and subscribe to notifications. It serves as a message sending channel, where publishers and subscribers can interact with each other.
Creating a Topic
- Log in to the management console.
- In the upper left corner of the page, click
and select the desired region and project.
- Select Simple Message Notification under Application.
The SMN console is displayed.
-
In the navigation pane, choose Topics.
The Topics page is displayed.
- In the upper right corner, click Create Topic.
- Enter a topic name and display name.
Table 1 Parameter descriptions Parameter
Description
Topic Name
Topic name, which:
- Contains only letters, digits, hyphens (-), and underscores (_), and must start with a letter or digit.
- Contains 1 to 255 characters.
- Must be unique and cannot be modified once the topic is created.
Display Name
Message sender name which can contain up to 192 characters
NOTE:
After you specify a display name, the sender in email messages will be presented as Display name<username@example.com>. Otherwise, the sender will be username@example.com.
Tag
A tag is a key-value pair. Tags identify cloud resources so that you can easily categorize and search for your resources.
- A key can contain up to 36 characters. A value can contain up to 43 characters. Both Key and Value can contain only digits, letters, hyphens (-), and underscores (_).
- You can add up to 10 tags for each topic.
- Click OK.
The topic you created is displayed in the topic list. The system generates a topic URN, which is the unique resource identifier of the topic and cannot be changed.
- Click the name of the topic to view its details, including the topic URN, display name and subscriptions.
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