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② 後台搜尋「U2Code Product Multicurrency for WooCommerce」→ 直接安裝（推薦）
原文外掛簡介
U2Code Product Multicurrency lets your WooCommerce store display prices and accept payments in any number of currencies.
Currencies & rates
Unlimited currencies, ordered the way you want them in the switcher
Automatic exchange rates from ECB, Frankfurter, FloatRates (free, no key), Open Exchange Rates or Fixer
Hourly to weekly update schedule, or manual-only, with an “Update now” button
Manual rate override per currency — automatic updates never touch it
Percentage fee (markup) and fixed fee per currency
Price rounding per currency: to the nearest/up/down step (0.01 … 100) plus charm endings (19.99) — with a live preview while you configure
Per-currency symbol, symbol position, decimals and separators — zero-decimal currencies like JPY handled correctly
If a rate is ever missing or broken, prices fall back to the base currency — never to zero
Detection & switching
Currency switcher everywhere you need it: Gutenberg block (works in Site Editor headers), shortcode [u2code_currency_switcher], classic widget, floating panel, navigation menu items (any number of menus, with a currency submenu), under the price on product pages, and an Elementor widget — five styles (dropdown, buttons, native select, flags only, text links), with flag emojis (no image sprites)
Geolocation: map countries to currencies and first-time visitors see their local one (crawlers always get the base currency)
The visitor’s choice is remembered in a cookie; ?currency=EUR links switch too
Cache compatibility mode: prices are re-drawn in the browser on cached pages; WP Rocket cookie registration built in
Checkout & orders
Choose: customers pay in the selected currency, or the checkout always charges the base currency (display-only switching)
Every order stores the currency, the exchange rate at purchase time and the total in your base currency
WooCommerce Analytics reads coherent base-currency numbers — reports never mix currencies
The order-pay page always charges the order’s own currency
Compatible by design
HPOS and Cart/Checkout Blocks compatible, Store API aware
Shipping costs, fixed-amount coupons, coupon limits and free-shipping thresholds are all converted
Ships integrations for Tiered Pricing Table, U2Code Product Addons, Elementor and WP Rocket — each can be toggled off
Extensive hooks for developers (see DEVELOPERS.md in the plugin folder)
Premium
Fixed per-product prices per currency (simple products and variations) that replace the calculated conversion
Restrict payment gateways per currency
External services
This plugin can fetch currency exchange rates from an external service. It only contacts the one provider you select under WooCommerce → Settings → Multicurrency → Exchange Rates, on the schedule you choose there (or when you press “Update rates now”). The request is made from your server and contains only the currency codes you configured — plus your own API key for the providers that require one. No visitor data and no personal data is ever sent.
Available rate providers:
European Central Bank (ECB) — free daily reference rates, no account needed. Disclaimer and copyright
Frankfurter — free open-source exchange-rate API, no key and no account needed. Website and documentation
FloatRates — free exchange-rate feeds, no account needed. FloatRates does not publish separate terms or privacy pages; see About FloatRates
Open Exchange Rates — requires an App ID that you create with them. Terms of service, Privacy policy
Fixer — requires an access key that you create with them. Terms of service, Privacy policy
If “Detect currency by visitor location” is enabled, the visitor’s country is determined by WooCommerce’s built-in geolocation on your own server. This plugin does not send visitor data to any external geolocation service.
Source code & build
The admin app in assets/admin/ is compiled with @wordpress/scripts (webpack) from the human-readable sources shipped in js-source/. To rebuild it:
cd js-source && npm install && npm run build
All other JavaScript and CSS in assets/ is hand-written; .min files are generated from the adjacent source file of the same name.
