Hi CalogeroQuattrocchi-6377,
Look like there is some info here. I don't have a subscription to logrhythm.com but this should point you to the right direction
as the instructions says, you need the connection string to the instance, not the namespace. you will find that under "shared access policies". if you don't have one you will need to create
This covers how to enter the info from above and configure the event hub beat:
https://docs.logrhythm.com/docs/OCbeats/azure-event-hubs-beat/event-hub-beat-using-connection-strings/initialize-the-event-hubs-beat-using-connection-strings