Account and brand
The Settings screen concentrates account administration in five tabs: Company, Users, Notifications, Integrations and Security.
Email layouts
The email layout is the HTML envelope wrapping every collection message sent by email: a header with your brand, a footer with your details, and in the middle the content of the step's template. The template says what the message says; the layout says how it dresses.
Notification preferences
Notification preferences are the type × channel switch for the messages the system sends to the debtor. They answer questions like "I want reminders by email, but not by SMS" without touching any collection rule.
API keys
API keys authenticate integrations with the API v1. They are created in Settings → Security, by administrators only.