# System - [Settings](https://docs.opencart.com/admin-interface/system/settings.md): Configuring store visual identity, theme, logo, and SEO meta tags in OpenCart 4 - [Store](https://docs.opencart.com/admin-interface/system/settings/store.md): Configuring store contact details and location information in OpenCart 4 - [Local](https://docs.opencart.com/admin-interface/system/settings/local.md): Configuring store localization, languages, and currencies in OpenCart 4 - [Option](https://docs.opencart.com/admin-interface/system/settings/option.md): Configuring core business logic, checkout options, and storefront behavior in OpenCart 4 - [Mail](https://docs.opencart.com/admin-interface/system/settings/mail.md): Configuring email protocols and notification alerts in OpenCart 4 - [Server](https://docs.opencart.com/admin-interface/system/settings/server.md): Configuring server-side technical options, security, and SEO in OpenCart 4 - [Localization](https://docs.opencart.com/admin-interface/system/localization.md): Managing regional settings, languages, currencies, taxes, and geographical data for multi-store and international operations - [Languages](https://docs.opencart.com/admin-interface/system/localization/languages.md): Managing store languages, locale settings, and translation configurations for multilingual stores - [Currencies](https://docs.opencart.com/admin-interface/system/localization/currencies.md): Managing currency configurations, exchange rates, and display formats for international stores - [Stock Statuses](https://docs.opencart.com/admin-interface/system/localization/stock-statuses.md): Defining inventory availability messages displayed to customers when viewing products - [Order Statuses](https://docs.opencart.com/admin-interface/system/localization/order-statuses.md): Defining order workflow stages and status labels for customer communication and internal tracking - [Returns](https://docs.opencart.com/admin-interface/system/localization/returns.md): Configuring return statuses, actions, and reasons for handling product returns and refunds - [Countries](https://docs.opencart.com/admin-interface/system/localization/countries.md): Managing country definitions, address formats, and postal code requirements for international operations - [Zones](https://docs.opencart.com/admin-interface/system/localization/zones.md): Managing regional subdivisions (states, provinces, territories) within countries for address validation and regional rules - [Geo Zones](https://docs.opencart.com/admin-interface/system/localization/geo-zones.md): Creating custom geographical groupings that combine countries and zones for shipping rules and tax calculations - [Tax Classes](https://docs.opencart.com/admin-interface/system/localization/tax-classes.md): Creating tax categories that group multiple tax rates for different products and services - [Tax Rates](https://docs.opencart.com/admin-interface/system/localization/tax-rates.md): Defining specific tax percentages or fixed amounts applied to products based on geographical zones and customer groups - [Length Classes](https://docs.opencart.com/admin-interface/system/localization/length-classes.md): Defining measurement units for product dimensions (centimeters, inches, meters, etc.) with conversion rates - [Weight Classes](https://docs.opencart.com/admin-interface/system/localization/weight-classes.md): Defining weight units for products (kilograms, pounds, ounces, grams, etc.) with conversion rates for shipping calculations - [Address Formats](https://docs.opencart.com/admin-interface/system/localization/address-formats.md): Managing address format templates for consistent address display across countries and regions - [Maintenance](https://docs.opencart.com/admin-interface/system/maintenance.md): Create, restore, and manage database backups to protect your store's data and ensure business continuity - [Error Logs](https://docs.opencart.com/admin-interface/system/maintenance/error-logs.md): Monitor, analyze, and manage system error logs to identify issues, debug problems, and maintain store stability - [Upgrade](https://docs.opencart.com/admin-interface/system/maintenance/upgrade.md): Check for, download, and install OpenCart updates to keep your store secure and up-to-date with the latest features - [Uploads](https://docs.opencart.com/admin-interface/system/maintenance/uploads.md): Manage customer file uploads, track submission history, and handle file downloads for personalized orders and custom product requests - [Users](https://docs.opencart.com/admin-interface/system/users.md) - [User Groups](https://docs.opencart.com/admin-interface/system/users/user-groups.md): Defining permission sets and access controls for administrative roles in OpenCart 4 - [API](https://docs.opencart.com/admin-interface/system/users/api.md): Generating and managing API credentials for external integrations and secure data exchange --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.opencart.com/admin-interface/system.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.