This topic applies to Dynatrace Managed installations only.
To enable synthetic monitors, your Dynatrace Managed deployment must be able to receive synthetic monitor monitoring data from the Dynatrace cloud. For this to happen you must install a public managed Security Gateway.
Once Dynatrace has validated that your Security Gateway can be reached from the Dynatrace cloud, you will be able to schedule synthetic monitors from all environments.
Note: Agentless real user monitoring and mobile-app monitoring use the same endpoint to transmit monitoring data to Dynatrace.