public void setActivationId(String activationId) {
        this.activationId = activationId;
    }
<p>
The ID number generated by the system when it processed the activation. The activation ID functions like a user
name.
</p>

@param activationId
       The ID number generated by the system when it processed the activation. The activation ID functions like a
       user name.
aws-java-sdk-ssm/src/main/java/com/amazonaws/services/simplesystemsmanagement/model/CreateActivationResult.java