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To implement a Direct Mail channel in Pega Customer Decision Hub, follow these steps:

1. In Dev Studio, navigate to Records > Decision > Decision data.
2. Open the ChannelSettings DDR located in the Data-Decision-Request-Customer class.
3. Check out the rule.
4. Click New to create a new channel.
5. Configure the channel details:

• - Name: For example, Direct Mail.
• - Description: An optional description, e.g., Used for product catalogs related to the Household line.
• - Channel icon: An optional icon to visually identify the channel in Next-Best-Action Designer.
• - ModelName: Enter NBA.
• - SettingName: A unique identifier for the channel, e.g., DirectMail.
• - SettingValue: Set to true to enable the new channel, or false to create the channel without enabling it.

6. Save and check in your changes.
7. In Dev Studio, navigate to Records > Data Model > Data Transform.
8. Open the appropriate data transform:
   • BuildListOfChannelsAndDirections_Inbound for an inbound channel.
   • BuildListOfChannelsAndDirections_Outbound for an outbound channel.
9. Save the Data Transform into your artifacts ruleset.
10. Edit the Data Transform and add a new entry for the Direct Mail channel.
11. Configure the added top-level entry and sub-entries.
12. Check in the changes to the Data Transform.
13. To make the channel available in the Customer Decision Hub portal under a different name than the SettingName in the DDR, create a new field value.

After completing these steps, the new Direct Mail channel will be displayed on the Channels tab of Next-Best-Action Designer. If the channel is enabled, you can also use it when configuring contact policies on the Constraints tab of Next-Best-Action Designer.

Reference

Adding additional channels to Next-Best-Action Designer