The RAM user does not have the required CloudMonitor permissions.
Cause
The RAM user is not granted the permissions to view monitoring data.
Solution
Use your Alibaba Cloud account to attach the AliyunCloudMonitorReadOnlyAccess system policy to the RAM user.
Log on to the RAM console with your Alibaba Cloud account.
Attach the
AliyunCloudMonitorReadOnlyAccesspolicy to the target RAM user.
After the policy is attached, the RAM user has the permissions to view monitoring data.
For detailed steps, see Grant permissions to RAM users.