Checkout for Shopify

Overview

Checkout for Shopify is an app that extends our gateway integration and enables you to accept payments in Shopify with Checkout. Checkout supports most popular payment methods.

Shop features

• The fast checkout with "remember me" functionality.
• Preferred payment methods.
• Supported currencies (one per shop): EUR, DKK, SEK, NOK, CHF, USD, GBP, PLN.
• Supported languages: German, English, Danish, Swedish, Norwegian, Finnish, Italian, French, Spanish.

Admin features

• Quick setup and flexible configuration.
• Intuitive order management with synchronized captures and refunds.
• Compatibility with discounts, tax (VAT), and shipping options.
• Multi-store support (same currency).
• Auto-charge/capture possible for digital goods.
• Automated extension updates, no action required.

Please note that the configuration settings are inherited across all the apps you install

The screenshot below shows the Checkout app settings:

Installation

By following the steps below, you will be able to integrate Checkout payment in your Shopify store:

Option 1 - Direct installation

1. Go to https://apps.shopify.com/nexi-checkout
2. Select your Shopify store and follow installation steps

Option 2 - Via Shopify admin

1. In shopify admin, go to shop admin Settings -> Payments -> Supported Payment Methods -> Search by provider
2. Enter "Checkout" in the search bar and select.

Please Note:

If you only want to install payment methods relevant to your store e.g Card or Swish or MobilePay or a combination of both, select those. Prior intallation of Nets Easy Checkout is not mandatory.

Basic Configuration

After installing and activating the app, you can always go back and reconfigure the selected app from Shopify Admin. The configuration is split into two parts:

• Payment Method Settings (located under Settings > Payments > Supported Payment Methods > Checkout is Active) enables you to activate payment/deactivate the payment gateway, activate payment methods, and toggle between live and test mode.

• If you want to change any of the configuration settings specifically like terms url or merchant terms url then clicking on Manage will redirect you to app settings page (located in Settings > Payments > Payment methods) select your payment method and select Manage from the More actions dropdown.

App settings

To configure your selected app settings, go to Apps > chosen payment app.

The following table lists all the settings you can configure under app settings:

Advanced configuration - Optional

Synchronize Order ID

The default configuration setting generates a randomized order ID in Checkout for each order. To synchronize the Shopify order ID, do the following:

• From your Shopify admin, go to Settings > Notifications.
• Scroll down to the Webhooks section.
• Click the Create webhook button A new window should appear.
• Then enter information as below:

App settings – Import tax (VAT) amount in Checkout

The default configuration settings do not import tax rate and tax amount in Checkout. It is possible to add a default tax rate and apply it to purchase items as well as shipping/discount amounts. To do this:

1. From Shopify admin, go to Apps > Checkout > App settings
2. Set tax rate (%) with the value for your shop (e.g 7.7 or 25).
3. Then tick the checkbox corresponding to your case: “Product/item price includes tax" or "Product/item price is excluding tax. (B2B mode)" if you are displaying net prices. Checkout will automatically calculate the set tax rate accordingly. It will be displayed in Checkout portal and in your report.

Payment method configuration

You can modify which payment methods icons get displayed in your store. For this, go to Payment Methods pages in your Shopify Admin settings.

Please Note: If you have selected individual payment method app, this information is only required for the Nets Easy Checkout app.

Order management

It's possible to manage orders directly in Shopify admin:

1. Navigate to Orders in Shopify admin.
2. Click on an order line to access order details.
3. Choose the Capture or Refund payment option. The Checkout app will synchronize automatically. The payment status will also be updated in Checkout Portal.

Our extension now offers multi charge

This is a feature that allows merchants to charge a customer's authorized credit card in separate, partial increments for a single order, rather than taking the full payment all at once.

This is useful for split shipments, backorders, or charging only when items are fulfilled.

Recommended workflow

Use Shopify Admin to capture and refund payments whenever possible

The integration supports multiple captures and refunds for a payment. Performing these operations through Shopify keeps the Shopify transaction history connected to the gateway transactions.

Captures and refunds made directly in the Nexi gateway portal can leave Shopify showing a different payment status or available balance. A later Shopify operation may reconcile an existing portal transaction, be rejected, or initiate another gateway transaction if the portal operation has not yet been recorded by the integration.

How reconciliation works

Reconciliation means linking an existing gateway transaction to a Shopify capture or refund, rather than moving money again.

Some examples that possibly could be documented, and used in case of portal usage

Example: matching amount

1. A payment is authorized for EUR 100.
2. The merchant captures EUR 40 in the portal.
3. After the integration records that capture, the merchant captures EUR 40 in Shopify.
4. Shopify's capture is linked to the existing portal capture.

Result: EUR 40 has been captured in total, not EUR 80.

If EUR 60 is selected in Shopify while the EUR 40 portal capture remains unlinked, the Shopify capture is rejected. Reconcile the EUR 40 capture first before requesting an additional capture.

Capture rejection message

A capture already exists in the portal with a different amount. Capture the same amount in Shopify to reconcile.

Example: repeated refunds of the same amount

1. Two separate EUR 20 refunds are made in the portal for the same payment.
2. Both are recorded as completed and neither is linked to Shopify.
3. The merchant requests a EUR 20 refund in Shopify.

Result: Shopify rejects the refund because two portal refunds match. Requesting EUR 40 does not combine the two portal refunds for reconciliation. Contact support to resolve the transaction links.

Refund rejection messages

Depending on the condition, the integration sends Shopify one of these messages

• Multiple matching portal refunds exist for this amount. Reconcile the portal refunds before refunding in Shopify.
• A refund already exists in the portal but cannot be linked to a captured charge. Reconcile the portal refund before refunding in Shopify.
• A matching portal refund exists, but it cannot be safely linked to a captured charge. Reconcile the portal refund before refunding in Shopify.
• Refund amount exceeds the amount currently available for refund in the portal.
• No refundable capture was found for this Shopify refund amount. Check portal refunds and retry with a matching amount.

Troubleshooting

Important notice

Below are some of the most common configuration errors, their cause and steps that you can follow to solve them.

Checkout is not visible as a payment method

• Ensure the Checkout is available and activated in the Shopify store under Settings > Payment > Checkout.
• Make sure you have configured the Payment gateway correctly.

Nexi Group payment window is blank

• Ensure your integration keys in the Nexi Group app settings are correct and do not contain additional blank spaces.
• Temporarily deactivate third party plugins that might affect the functionality of the app.
• Check if there are any temporary technical inconsistencies: https://easy-status.developers.nets.eu/

Payments in live mode don't work

• Ensure you have an approved Live Checkout account for production.
• Ensure your Live Checkout account is approved for payments with the selected currency.
• Ensure payment method data is correct and supported by your Checkout agreement.

Go live checklist