# WCPOS Polylang

**WP admin:** installed in `WP Admin → POS → Settings → Extensions`, and set per store in `WP Admin → POS → Stores`.

WCPOS Polylang shows each product once in search and the product grid, in your store's language. Without it, products translated in [Polylang](https://wordpress.org/plugins/polylang/) show up in the POS once for each language.

## What the cashier sees[​](#what-it-does "What the cashier sees के लिए सीधा लिंक")

* **One copy of each product.** Search, the product grid and variations all come from one language.
* **The store's language.** On WCPOS Pro, each store can have its own language. Without Pro, the POS uses Polylang's default language.
* **Your POS Only settings still apply.** A product set to **Online Only** stays out of the POS. See [POS Only Products](/hi-IN/manage-store/products/pos-only-products.md).

A product with no translation in the store's language doesn't show in that store. Add the translation in Polylang to sell it there.

## Requirements[​](#requirements "Requirements के लिए सीधा लिंक")

WooCommerce

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: WooCommerce installed and active

Polylang

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: Polylang active, with at least one language

WCPOS

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: Works with the free plugin; a language per store needs WCPOS Pro

## Set it up[​](#installation "Set it up के लिए सीधा लिंक")

Steps 1 to 3 happen in WP Admin. Step 4 happens on each till.

1. **Set up Polylang.** Install and activate [Polylang](https://wordpress.org/plugins/polylang/), add your languages and choose the default one. On WordPress 6.5 and later, WordPress won't activate WCPOS Polylang until Polylang is active.

2. **Install WCPOS Polylang.**

   **With WCPOS Pro:** open **POS → Settings → Extensions**, find **WCPOS Polylang**, then **Install** and **Activate**. See [Installing an Extension](/hi-IN/manage-store/add-ons.md#installing-an-extension).

   **Without WCPOS Pro:** download `wcpos-polylang.zip` from the [latest release](https://github.com/wcpos/wcpos-polylang/releases/latest) and upload it in **Plugins → Add Plugin → Upload Plugin**. Click **Install Now**, then **Activate Plugin**.

3. **With WCPOS Pro, choose each store's language** if a store shouldn't use Polylang's default. See [Choose a language for each store](#per-store-language-pro).

4. **Download the products again on each till.** See [Download the products again](#redownload).

## Choose a language for each store[​](#per-store-language-pro "Choose a language for each store के लिए सीधा लिंक")

With WCPOS Pro

Each store can have its own Polylang language. Without Pro, every till uses Polylang's default language. To set a language per store, upgrade to [WCPOS Pro](/hi-IN/getting-started/pro-license.md).

1. In WP Admin, open **POS → Stores** and click the store.
2. In the store's menu, under **Extensions**, click **Language**.
3. Under **Store language**, pick a language. Polylang lists them by code, such as `en` or `fr`. The first choice, **Default language** with your default's code beside it, follows Polylang's default.

The page saves as you go. Then [download the products again](#redownload) on that store's tills, as below.

The **Language** page shows only when WCPOS Pro, Polylang (with at least one language) and WCPOS Polylang are all active.

### Two settings called Language[​](#two-languages "Two settings called Language के लिए सीधा लिंक")

A store has two **Language** settings, and they can be different.

| In the store's menu                | What it changes                                                                                                                        |
| ---------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- |
| **Extensions → Language**          | Which products the store's tills get: one Polylang language.                                                                           |
| **Currency & language → Language** | The language of the POS screen and receipts. See [Fill in the store's pages](/hi-IN/manage-store/stores/set-up-stores.md#store-pages). |

## Download the products again[​](#redownload "Download the products again के लिए सीधा लिंक")

So that each till holds one language only, fetch its products again. Do this on each till while it's online:

1. Open the navigation drawer and tap **Store health** (the heartbeat icon). It opens on the **Database** tab.
2. On the **Products** row, open the **More actions** menu and choose **Clear & re-download…**, then confirm. This clears the variations too.
3. Search for a product that has a translation in the store's language. It shows once, with its name in that language. If not, see [If something goes wrong](#compatibility-notes).

![Store health on the Database tab, with the More actions menu on the Products row open and Clear & re-download in it](/img/2.x/extensions/polylang/en/tablet-light-regular--x-1-clear-redownload-products.png)123

1. **Products** — how many products this till holds, out of the total on your site. The **Variations** row below it is cleared with it.
2. **More actions** — the menu for the row.
3. **Clear & re-download…** — removes this till's copy and fetches it again, in one language. See [Store Health](/hi-IN/troubleshooting/store-health.md#clear-and-redownload).

Nothing on the server changes. The first products come back right away, and the rest as you browse, search and sell. The **Products** row shows how many are back. See [Checking download progress](/hi-IN/manage-store/products/product-sync.md#progress).

## If something goes wrong[​](#compatibility-notes "If something goes wrong के लिए सीधा लिंक")

**Every product shows more than once.** Check that Polylang and WCPOS Polylang are both active in **Plugins**. When Polylang is off, WCPOS Polylang does nothing and the POS gets every language. Then [download the products again](#redownload) on each till.

**A store shows products in the wrong language.** Its **Extensions → Language** page is on **Default language**, or on another language. Pick the store's language, then [download the products again](#redownload) on its tills.

**A product is missing in one store.** Check that it has a translation in that store's language, and add one in Polylang if not. If it has, see [When you can't find it](/hi-IN/sell/find-products.md#goes-wrong).

**There's no Language page under Extensions.** It needs WCPOS Pro, Polylang with at least one language, and WCPOS Polylang, all active.

## For developers[​](#developer-hooks "For developers के लिए सीधा लिंक")

How the filtering works, and its filters

* WCPOS Polylang adds Polylang's `lang` query to the product and variation REST queries that WCPOS makes, on both the `/wcpos/v…/` routes and requests marked as WCPOS by the free plugin's `wcpos_request()`.
* It answers WCPOS's ID-only product and variation lists (`posts_per_page=-1` with `fields=id` or `fields=id,date_modified_gmt` on `/wcpos/v1/products` and its variation routes) itself, filtered to the language, leaving out **Online Only** IDs when POS Only products is on.
* With WCPOS Pro, a request with a `store_id` the user may use gets that store's language. A store's language is saved in the `_wcpos_polylang_language` post meta and returned as `language` by `/wcpos/v1/stores`.

| Filter                             | Purpose                                                                                  |
| ---------------------------------- | ---------------------------------------------------------------------------------------- |
| `wcpos_polylang_resolved_language` | Change the language for a request. Receives the language slug and the `WP_REST_Request`. |
| `wcpos_polylang_default_language`  | Change the fallback language when a store has none set.                                  |
| `wcpos_polylang_is_supported`      | Turn the integration on or off, whatever Polylang detection says.                        |
| `wcpos_polylang_minimum_version`   | Require a minimum Polylang version. Empty by default: no version check.                  |

Source: [github.com/wcpos/wcpos-polylang](https://github.com/wcpos/wcpos-polylang).

## Related Documentation[​](#related "Related Documentation के लिए सीधा लिंक")

The other language plugins work the same way:

* [WCPOS WPML](/hi-IN/settings/languages/wpml.md)
* [WCPOS WP Multilang](/hi-IN/settings/languages/wp-multilang.md)

[Set Up a StoreCreate a store and fill in its pages, including Currency & language](/hi-IN/manage-store/stores/set-up-stores.md)

[POS Only ProductsKeep products in the POS, online, or both](/hi-IN/manage-store/products/pos-only-products.md)

[ExtensionsFind, install and update WCPOS extensions](/hi-IN/manage-store/add-ons.md)