Scheduled Activities - Solution Design

Summary of the whole flow from Marketing tools to the customer. 

1. Campaign tools schedule an activity by calling exposed scheduler APIs
2. The scheduler pushes the scheduled activity to CX Activity to be part of customer history.
3. The scheduler Queues the activity and pushes it to CCM when the scheduled date time reaches.
4. CCM acts as a proxy and forwards the scheduled message to the relevant connector.
5. When the message is delivered, CCM sends back a delivery notification to the Scheduler that it received from the relevant connectors
6. Scheduler updates the delivery notification to CX Activities
7. The scheduler also pushes it to the Campaign Manager via registered webhooks.
8. When the customer reads or replies to the scheduled message, CCM sends the delivery notification as READ. In addition, it also sends back the customer response received from connectors to Scheduler.
9. The scheduler pushes the READ delivery notification and the customer responses of the scheduled activity to CX Activities.
10. The scheduler also publishes the delivery notifications and customer responses to the Campaign Manager via the registered webhooks.