# Adding Tags to a Topic

#### Scenario

Tags consist of keys and values. They identify cloud resources so that you can easily categorize and search for your resources.

- A tag key can have multiple values.
- Tag keys for the same resource must be unique.

#### To Add Tags to a Topic

1. Log in to the management console.
2. Click on the upper left to select the desired region and project.
3. In the Application category, click Simple Message Notification.

   The SMN console is displayed.

4. In the navigation pane, choose Topics.

   The Topics page is displayed.

5. Click the topic name. The topic details are displayed.
6. Click the Tags tab.
7. Click Add Tag and specify tag keys and values.
   Figure 1 Add Tag
   - A key or value is composed of letters, numerals, special characters -_@ and cannot start or end with a space. A key contains 36 characters at most, and a value contains 43 characters at most.
   - You can add up to 10 tags for each topic.
8. Click OK. The tags you added are displayed in the list.
9. Click Edit under Operation to modify the tag value.
   Figure 2 Edit Tag
10. Click Delete under Operation and click Yes in the confirmation box to delete a tag.
    Figure 3 Delete Tag

Parent topic: Topic Management