How can I use more advanced contact policy logic for Collections-related correspondences?

You can include your custom logic in the ContactPolicyExtension strategy to support your requirements. For example, you can manage channel constraints by state or postal code.

How can I configure channels enabled on the Next-Best-Action Designer channel tab?

Channels are means of communication that customer can use to interact with a company. Pega Customer Decision Hub supports inbound as well as outbound channels. For more information, see:

• Understanding channels
• Defining action flows

What are transactional actions and when to define an action type as Transactional?

Define an action as transactional if you do not want to apply the usual contact policies to this action, for example, because the action is a regulatory communication which the client must receive regardless of contact policies. Customer contact limits logic is not applicable to transactional actions, but contact policy suppression is still applicable.