Azure Event Hubs Writer
Options
Here are the important options to fill in to get the transform to work:
-  Event Hubs namespace: the name of your Event Hubs namespace 
-  Event Hubs instance name: the name of the Event Hub, the instance itself. 
-  SAS Policy key name: the name of the policy in the "Shared Access Policies" section of the Event Hubs Namespace in the Azure dashboard. This needs to be a policy with the "Send" claim enabled. 
-  SAS Key connection string: You can use the value in the policy labeled "Connection string–primary key" 
-  Batch size: the number of messages (events) to send in one batch with each call to Azure. 
-  Message field: the field containing the message to use as the events. Please note you can use a transform like JSON Output or "Java Script" to assemble the message.