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.
and select the desired region and project.The SMN console is displayed.
The Topics page is displayed.
Figure 1 Create Topic

Parameter | Description |
|---|---|
Topic Name | Topic name, which:
|
Display Name | Message sender name, which can contain up to 192 bytes. 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. |
Enterprise Project | Name of an enterprise project. An enterprise project allows you to group cloud resources under specific projects and makes it easier to manage cloud resources and users. This parameter is for enterprise users. |
CTS Log | Whether to enable CTS log. |
Log Group | Select a log group. A log group is a group of log streams which share the same log retention settings. For details, see Log Groups. |
Log Stream | Select a log stream in the specified log group. A log stream is the basic unit for reading and writing logs. You can sort logs of different types, such as operation logs and access logs, into different log streams. For details, see Log Streams. |
Tag | A tag is a key-value pair. Tags identify cloud resources so that you can easily categorize and search for your resources.
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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.
To search for a topic, filter topics by project or enter the topic name or ID in the upper right corner of the topic list. Then click
or press Enter. Alternatively, click Search by Tag above the upper right corner of the topic list and search for a topic by tag key and value.