Create Tag activity The Create Tag activity adds private tags to a VM to simplify the administration of your EC2 environment. This metadata consists of case-sensitive key/value pairs that you can use to create user-friendly names. For example, you can define a tag with key = Name and value = Webserver. You can add up to ten unique keys to each instance with an optional value for each key. Create tag input variablesThese variables determine the behavior of the activity.