You can integrate Web money in xpayment in following ways:

1. Create a new payment method in x-payment
2. On the General setting, Choose your Order status that you want to apply when the purchase is successful.
3. On the integration tab, Select Integration Type “Redirect/Forward to Payment URL”
4. Enter URL to redirect is: https://merchant.wmtransfer.com/lmi/payment_utf.asp
5. Select Method Type: POST
6. On the Data(s) field, enter following JSON data and adjust your LMI_PAYEE_PURSE accordingly.

{
    "LMI_PAYEE_PURSE" : "ADD_YOUR_PAYEE_PURSE",
    "LMI_PAYMENT_DESC" : "Payment to {storeName}",
    "LMI_PAYMENT_NO" : "{orderId}",
    "LMI_PAYMER_EMAIL": "{email}",
    "LMI_PAYMENT_AMOUNT" : "{orderTotal}",
    "LMI_SUCCESS_URL" : "{returnURL}",
    "LMI_FAIL_URL": "{storeUrl}index.php?route=checkout/checkout",
    "LMI_SUCCESS_METHOD" : "POST"
}

7. On the Payment success condition field, enter the following condition:

LMI_PAYMENT_NO != ''

8. Please download this ocmod and install it through the extension installer and refresh your ocmod list. This is needed as WebMoney does not return to the success page properly.