The Nexi XPay payment extension for Prestashop 8 and 9, allows you to integrate the XPay payment gateway without further implementation on your site.

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Installation

The Nexi XPay plugin for Prestahop 8 and 9 is available for free on the website Prestashop Addons, from which you can check the compatible versions.

It is possible to install the extension using the appropriate installer made available by Prestashop.

1. Log in to the Prestashop 8/9 administrative panel.
2. In the left navigation bar, select Modules > Module Manager .
3. On the new page, select Upload a module at the top right.
4. Load the plugin downloaded from the site Prestashop Addons .

The installation phase is complete, proceed with the configuration.

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Configuration

Here are the instructions to correctly configure the Nexi XPay plugin:

1. Log in to the Prestashop 8/9 administrative panel.
2. In the left navigation bar, select Modules > Module Manager .
3. In the new page look for the Nexi XPay plugin in the list and click on Configure .

Proceed with the configuration of the module:

Google Pay Configuration

Google Pay can be enabled in two modes:

• REDIRECT: default option automatically activated by Nexi on the plugin. Selecting this payment method redirects to an external XPay gateway intermediate page, from which it will be possible to pay with Google Pay. A Google Merchant account and the use of the Google Pay Business Console are not required.
• BUTTON: a native Google Pay button is created, allowing payment without redirection to external intermediate pages. Instructions for activating this mode:
  1. Enable APM: verify that the alternative payment method (APM) is enabled on the terminal by accessing the Nexi Business portal; in the XPay Back office section, select Alternative Payments > Google Pay.
  2. Register the domain: log in to the Google Pay Business Console and register the store domain (Google Pay API > Integrate with your website). Google must approve the site before you can proceed. If you do not have a Google Merchant account, create one during the procedure.
  3. Enter merchant data: once the domain is approved, retrieve the following data from the Google Pay console:
     • Google Merchant Name
     • Google Merchant ID
  4. Set the Gateway Merchant ID: enter a unique code in this field; it is recommended to use an online UUID generator.
  
  

  Field	Description
  Google merchant name	Data provided by Google in the Google Pay console.
  Google merchant Id	Data provided by Google in the Google Pay console.
  Google gateway merchant Id	Enter a unique code in this field; it is recommended to use an online UUID generator.
  Button type	Google provides different styles for the Google Pay payment button. For more information and a preview of the different types, consult the Brand guidelines page.
  Button color	Background color of the Google Pay button. For more information and a preview of the different types, consult the Brand guidelines page.

Test and production

It is highly recommended that you test the plugin in a test environment, before entering the production code.

It is possible to obtain the test credentials (API key) in the test area. In the area there will also be test cards that can be used to carry out successful and negative transactions. In this phase it is necessary to verify that the orders are created correctly, also checking the details of the orders.

Switch to production

To carry out the transition to production it is necessary to create the production credentials (API Key). To generate the new credentials follow these steps:

1. Log in to Nexi Business.
2. Sign in to the XPay Web Back Office.
3. In the "Admin" section click on "APIKey".
4. Click on "Add new APIKey".
5. Once the terminal has been selected, click on "Add" to generate the production API Key.

Once the API Key has been created, the module configuration must be updated:

1. Log in to the Prestashop 8/9 administrative panel.
2. In the left navigation bar, select Modules > Module Manager.
3. On the new page, look for the Nexi plugin in the list and click Configure.
4. Disable the TEST mode and enter the API Key generated on Nexi Business
5. Save the new configuration

It is advisable to carry out a proof of payment with a real card with the transition to production.

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Payment methods

The Nexi XPay plugin offers customers various payment methods:

Payment by cards

With this solution, the customer remains on the merchant's e-commerce until checkout. It is redirected to the Nexi environment to make the payment and then return to the merchant's website at the end of the transaction.

OneClick Payment

Integrating this solution allows the end customer to store their credit card data and use it later to make purchases with just a few clicks.

In the case of the first payment, XPay will display the form for entering the card details. For subsequent payments, it will show the previously entered card information or provide the option to enter the details of a new card.

Not available for the integration type Build with embedded checkout.

Pay-By-Link

This solution involves generating an order on the Prestashop side, selecting the appropriate products and the customer who wishes to make the purchase.

By clicking on the button "Send an email to the customer with the link to make the payment" an email will be sent to the customer containing a link to make the payment. The customer will be redirected to the checkout page of the ecommerce site.

Alternative Payment Methods (APM)

The plugin offers several alternative payment methods. By selecting the desired method, the customer will be redirected to the checkout page of the chosen payment service. Below is a list of supported payment methods:

• Google Pay
• Apple Pay
• PayPal
• PayPal - Paga in 3 rate
• Bancomat Pay
• MyBank
• Giropay
• iDEAL
• Bancontact
• Multibanco

Once a new payment method has been enabled from the XPay back office, it will be necessary to save the plugin configuration to update the APM list and show the new payment method in the ecommerce site checkout.

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Back office functionality

In the details of each order, the plugin provides information relating to transactions such as the details of the card used and the status of payments on the XPay gateway.

Refund

You can perform full or partial refund operations. This operation will reverse the desired amount by reimbursing the customer. Here are the operations to perform:

1. Log in to the Prestashop administrative panel.
2. In the navigation bar on the left, select Orders .
3. Click on the order to be refunded.
4. In the Payment Details section Nexi XPay enter the amount to be reversed and click on the Refund button.

Capture

You can perform full or partial capture operations. This operation will capture the desired amount on the XPay gateway.

By default, total capture of the amount occurs automatically at midnight, use this option only in case of non-standard terminal configurations.

Here are the steps to take:

1. Log in to the Prestashop administrative panel.
2. In the navigation bar on the left, select Orders .
3. Click on the order to be refunded.
4. In the Nexi XPay payment details section, enter the amount to be captured and click on the Capture button.