These are the sample HTML files that correspond with the Marketing Cloud Trailhead module, Custom Preference Center Development, released in February 2022. They are branded based on a fictional bank, Cumulus.

Files include:

1. Unsubscribe Confirmation: Processing page for a one-click unsubscribe link from an email.
2. Preference Center: Preference center page for Cumulus Bank that is accessed via a Update Preferences link from an email.
3. Preference Center Confirmation: Processing page for updating subscriber preferences from the Preference Center.