We're using the DataDog integration to bring MongoDB metrics to DataDog. We want to re-create a DataDog monitor which is an equivalent to Altas alert "Connections of configured limit has gone above <>". However, we cannot do that relying solely on metrics, since the only connection related metric we found is "mongodb.atlas.connections.current".
It looks like the only way to solve this issue is to create a DataDog monitor based on the received event from Atlas.