Define user attributes to build audiences in Feature Experimentation

Use attributes to build the audiences that see your experiments, and use the Attributes tab to manage your user attributes.

To create a new attribute key:

1. Go to Audiences > Attributes.
2. Click Create New Attribute.
3. Enter a key for the attribute.
   • Attribute keys must be unique within your project. For example, an attribute for visitors in the United States might be called US_VISITOR. You can pass attributes to the Optimizely Feature Experimentation SDK in your code, so update your code with any changes to your keys.
4. Click Save.

Attribute value formatting

You define attribute values in the Audiences tab, not the Attributes tab.

Attribute values are not explicitly typed in the Optimizely app. However, based on the format of the value you pass, you can choose different audience match criteria (comparison operations like greater than or equal to). For information, see Target audiences.