Understand where major settings live and what they control.

Settings areaControlsGeneralCompany, URLs, localization, themes, invoice and ordering behavior.AutomationBilling schedule, lifecycle actions, reminders, closure and batch size.Currencies and taxDisplay/exchange values and geographic tax rules.EmailTransport, sender identity, templates and queued retries.ProductsGroups, prices, modules, configurable options, addons and bundles.GatewaysPayment-method activation, credentials, test mode and ordering.Servers/registrarsProvisioning endpoints and domain-provider credentials.SupportDepartments, statuses, escalation, spam and ticket behavior.Staff/securityAdministrators, roles, sessions, API credentials and IP controls. How values are storedMost UI settings are persisted in the settings or module configuration tables. Configuration bootstrap values such as DB access, encryption key, canonical URL and custom admin path remain in configuration.php.

Password fields that say “leave blank to keep” retain the encrypted existing secret. Other submitted settings are updated individually; saving one field should not erase unrelated values.