Thank you for choosing Alibaba Cloud. The alert rule feature for cloud service basic monitoring metrics in the Alert Center of Cloud Monitor 2.0 will be upgraded on September 24, 2026. After the upgrade, the following changes will take effect:

1. Alert rules created for cloud service basic monitoring metrics will have a workspace attribute.
2. Existing alert rules of the cloud service basic monitoring metric type that were created in Cloud Monitor 2.0 will be visible only in the default workspace in the Shanghai region.
3. Alert rules migrated from Cloud Monitor 1.0 will be visible only in the default workspace in the Shanghai region.

Please take note of the above changes. Going forward, alert rules for cloud service basic monitoring metrics will be managed within their respective workspaces.

If you have production workloads that depend on this feature, we recommend that you create the required alert rules in workspaces other than the default workspace in the Shanghai region after the upgrade date.