After you use the custom monitoring feature to report monitoring data to Cloud Monitor, you can view the monitoring data in the Cloud Monitor console.
Procedure
Log on to the Cloud Monitor console.
In the left-side navigation pane, choose .
On the Time Series tab of the Custom Monitoring page, select the application group and time series. Then, click Select Dimension.
In the Dimensions panel, select the dimension that you want to use and click OK.
By default, Cloud Monitor queries the monitoring data for the latest one hour. You can select a time period based on your needs.