Customer Service It supports a cross-cutting digital care strategy for highly mature contact centers. Explore the following use cases: C-1-2022a Channel - WhatsApp - Proactive messaging in asynchronous communication. C-1-2022b Channel - WhatsApp - Proactive messaging in asynchronous communication with retry capability or agent redirection. C-4-2022a Callback - Automated scheduling for deferred contact due to voice queue availability saturation.