> ## Documentation Index
> Fetch the complete documentation index at: https://docs.meum.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Configuration

> Connect WooCommerce to Meum via connection key.

## Prerequisites

* Plugin installed and activated
* Settlement wallet configured in Merchant Admin
* WooCommerce connection key from **Dashboard → Integrations → WooCommerce**

## Steps

1. Open **WooCommerce → Settings → Payments → Meum Crypto Payments**
2. Paste the **connection key** from Merchant Admin
3. Click **Connect**
4. On success, the plugin stores:
   * Dedicated API key
   * Webhook secret
   * Integration ID
5. Enable the gateway checkbox
6. Save settings

## Advanced settings

* **Platform API URL**: default `https://api.meum.io`. Change only when Meum support provides a different base URL for your environment.

<Note>
  On **Growth** and **Business** plans, configure whether the platform fee is paid by the merchant or customer under **Dashboard → Stores → \[Store] → Settings → Checkout**. See [Checkout fees](/payments/checkout-fees).
</Note>

## Shop currency

WooCommerce sends the store **shop currency** on each invoice. That currency must be allowed in Meum merchant invoice fiat settings. Otherwise checkout fails with `CURRENCY_NOT_ALLOWED` (HTTP 403).

**Fix:** allow the shop currency in Merchant Admin, or change **WooCommerce → Settings → General → Currency** to a currency Meum already allows. See [Common API errors](/troubleshooting/common-api-errors#currency_not_allowed).

## Expected result

Gateway shows "Connected" status. Checkout displays "Pay with Crypto".

## Related pages

* [Webhook verification](/woocommerce/webhook-verification)
* [Checkout flow](/woocommerce/checkout-flow)
* [Common API errors](/troubleshooting/common-api-errors)