When different configuration values are required in the official and test environments respectively, you can create namespaces to isolate the configurations in different environments. When the data of multiple product lines needs to be isolated, you can also allocate a namespace to each product line.
To create a namespace, follow these steps:
Log on to the ACM console, and select the Region as needed in the upper-left corner.
Select Namespace in the left-side navigation pane of the console, and click the Create Namespace button.
Enter a namespace name in the Create Namespace dialog box, and click OK.
Note: Currently, one user can create up to five namespaces.
Switch to the Configurations page and you can see that a new namespace called test has been generated. The data of this test namespace and that of the Default space is completely isolated.