2. In the left sidebar, click Application Management to go to the application list page and select a deployment region for your application.
3. Click the ID of the target application to go to the application details page.
4. Click Edit and Update in the Auto-Scaling module and configure the instance count change policy.
Scheduled Policy: specify the instance trigger time and the number of instances to trigger. You can configure multiple trigger conditions but only one of them can take effect.
Metric-scaling Policy: enter an expected metric value. The system will calculate the scaling ratio according to current and expected metric values.
5. Click Submit to modify the number of instances.
