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Startup and Administrator Guide
Deliver Response Processing
From version 12.1.5, Deliver adopts a push model from On-Demand side so that reply messages arriving from WhatsApp and SMS from On-Demand server are pushed by Deliver to RCT as and when they appear. This significantly reduces data transfer between On-Demand and On-Premises because the responses will be pushed only when they arrive.
ResponseOut module
The ResponseOut module on Deliver OD side pushes only WhatsApp and SMS replies to the customers on-premises network. This simplifies the requirement of having static IP down to single module. Each module which processes response relays it to ResponseOut module via separate Kafka topics for each customer account and type of response. This allows ResponseOut module to scale horizontally to process responses coming from all modules faster and push them to customers on-premises network.

Administrator Guides
- Startup and Administrator Guide
  - Hosted messaging using Campaign and Deliver
    When Unica Campaign is integrated with Unica Deliver, you can use Deliver to conduct highly personalized digital marketing campaigns.
  - Configuring the local HCL Unica environment for Deliver
  - Connecting to hosted email services
    To access message services provided by Unica, you must configure a connection between the local HCL Unica installation and HCL Unica hosted services.
  - Working with the Response and Contact Tracker
    The Response and Contact Tracker (RCT) is installed in your local environment and communicates with HCL Unica hosted services to retrieve and process data for email contacts, email delivery, and recipient responses, such as link clicks and opens. The RCT must be running in order to retrieve link tracking and email delivery notification data from HCL Unica hosted services .
  - Deliver Response Processing
    From version 12.1.5, Deliver adopts a push model from On-Demand side so that reply messages arriving from WhatsApp and SMS from On-Demand server are pushed by Deliver to RCT as and when they appear. This significantly reduces data transfer between On-Demand and On-Premises because the responses will be pushed only when they arrive.
    - ResponseOut module
      The ResponseOut module on Deliver OD side pushes only WhatsApp and SMS replies to the customers on-premises network. This simplifies the requirement of having static IP down to single module. Each module which processes response relays it to ResponseOut module via separate Kafka topics for each customer account and type of response. This allows ResponseOut module to scale horizontally to process responses coming from all modules faster and push them to customers on-premises network.
    - Changes on RCT to accept responses over webhook
      RCT can be enhanced to accept incoming responses as it already handles further processing like saving those responses in Deliver OP tables or handing over responses to Journey for messages sent from Journey.
  - Testing the Deliver installation
    To ensure access to all hosted email features, test the configurations and connections for your Campaign and Deliver installations after you enable Deliver, expand your Deliver installation, or upgrade the Campaign installation.
  - Unica Deliver REST APIs
    Deliver has exposed REST APIs which can be used to perform variety of operations like working with Email, SMS, Push, WhatsApp messages and communication templates, working with batch production and test message sending as well as transactional message sending. This chapter provides details of these APIs, how to authenticate and generate API token which is needed to call these APIs.
  - Configurations for Unica Deliver
    The Unica Platform provides various configuration properties to modify the behavior and appearance of Deliver. Some configuration properties are set during installation. You can change configuration properties at any time.
  - Utilities for Deliver
    Deliver provides several scripts that you use to administer Deliver functions.
  - About troubleshooting Deliver
    Unica Deliver provides various tools and techniques that you can use to investigate issues related to your Campaign and Deliver installations.
  - Managing user access to mailing features
    Campaign and Deliver use roles and permissions provided by the Unica Platform to control user access to messaging features in Deliver and Campaign. You must have permissions in Unica Platform and Campaign to make the required changes. You must also be familiar with how to configure roles and permissions in the Platform and how to define security policies for Campaign.
  - Technote (troubleshooting)
  - Deliver channel vendor account configuration
  - RCT Reverse Proxy Configurations
- Transactional Message Administrator Guide

ResponseOut module

The ResponseOut module on Deliver OD side pushes only WhatsApp and SMS replies to the customers on-premises network. This simplifies the requirement of having static IP down to single module. Each module which processes response relays it to ResponseOut module via separate Kafka topics for each customer account and type of response. This allows ResponseOut module to scale horizontally to process responses coming from all modules faster and push them to customers on-premises network.

Since there are issues in communication like network issues over internet or inside customers network, RCT not running on customers side, a retry mechanism ensures that responses are not due to these issues, for example, if RCT is down and Deliver gets a 404 error for responses sent over web-hooks, Deliver retries few times to send the responses again after which these responses are routed to existing response files and RCT can download them using existing pull model when it is run again. However, for this approach, both new web-hook listen, and existing response download mechanisms must be kept active in RCT.

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