Public Release Note - PayPal PLUS Service Connector 2

1 Introduction

Welcome to the Intershop PayPal PLUS connector. The service connector adds PayPal PLUS to your Intershop installation. The connector is built on the new payment API shipped with Intershop Commerce Management 7.6.1+.

This release note provides important product information, including version information and dependencies. It also outlines the basic setup and configuration steps.

1.1 References

1.2 Version Information and Dependencies

This delivery and the accompanying documentation are valid for the following combinations of software versions:

IntershopPayPal PLUS Connector

The next table provides information about the cartridges included in the package. Not all of these cartridges are required.

ac_payment_paypal_plusIncludes all basic functionality and business logic that is used both in the storefront and the back office.(tick)
ac_payment_paypal_plus_boIncludes non-standard functionality, which is available in the back office only. This includes, among others, the initialization of the payment connector, which also creates the PayPal experience profile.


as_responsive_paypal_plusThis cartridge simply enables the PayPal PLUS payment connector for the following application types: intershop.B2CResponsive.Cartridges, intershop.SMBResponsive.Cartridges. The cartridge is optional and may be skipped in case the custom project does not support these application types or PayPal PLUS is not required in these application types.(error)


Includes some additional functionality that is relevant only for the responsive storefront reference application. This includes, among others, the detection of shopping cart changes that require re-rendering of the payment wall. The cartridge is optional and may be skipped in case the project is not based on the responsive storefront reference application.(error)
demo_responsive_paypal_plusIncludes demo content relevant only for the reference applications. Sets up, among others, a managed service.(error)


The PayPal PLUS Service Connector 2+ is based on the Payment API 2.0.

1.3 Supported Application Types

The PayPal PLUS Connector may be used out of the box for the following application types:

Application TypeApplication Type IDDescription
B2C WebShop


Business to Consumer Channel
SMB WebShopintershop.SMBResponsiveSmall and Medium B2B Channel

2 Feature Overview

2.1 Payment Management Options

The PayPal PLUS payment connector offers the display of a payment wall in which the storefront users (customers) may choose between several payment methods:

  • Payment with PayPal account;
  • Payment with credit card;
  • Payment with debit card;

More methods may be added in the future. Some may be excluded depending on the contract between PayPal and the merchant. The next figure shows the display of the payment wall in the third step of the checkout.

When the users make their choice, they are redirected after checkout to a PayPal hosted page where the actual payment takes place. Then the users are redirected back to the webshop site of the merchant. No sensitive information is stored by the merchant.

The connector supports the following operations:

CaptureA capture is automatically performed after a redirect back to the merchant site. A workflow that performs authorization and capture separately is currently not supported.
RefundOption to return (parts of) the captured amount. Also supports multiple refunds.


Operations that are performed in the PayPal Web interface may be synchronized with Intershop Commerce Management using webhooks.

2.2 Webhooks

2.2.1 General Information

Webhooks are user-defined HTTP callbacks that receive events for the subscribed event types. The main purpose of these events is the synchronization of the payment status between Intershop Commerce Management and PayPal. This way, e.g., a refund can be triggered from both, the Intershop Commerce Management application and the merchant UI hosted by PayPal. For detailed information about webhooks, see the PayPal documentation at PayPal Webhooks Overview.

Currently Intershop supports the following webhook event types:

Event TypeDescription
PAYMENT.SALE.COMPLETEDThis event is triggered when a sale is completed.
PAYMENT.SALE.DENIEDThis event is triggered when the sale status changes from pending to denied.
PAYMENT.SALE.PENDINGThis event is triggered when the sale status changes to pending.
PAYMENT.SALE.REFUNDEDThis event is triggered when the sale is refunded by the merchant.
PAYMENT.SALE.REVERSEDThis event is triggered when the sale is reversed by PayPal.

2.2.2 Webhook Validation

The webhook payload is digitally signed by PayPal. If the signature cannot be verified, the system will discard the event. Webhook validation can be switched on/off by a file-based configuration property:
intershop.payment.PAYPAL_PLUS.SkipWebhookSignatureVerification = false


For security reasons you should switch off the validation only for testing purposes.

2.2.3 Receiving a Webhook

The following Intershop Commerce Management endpoint listens for webhook events:


Here host and port are the host and the port where the Intershop Commerce Management system is available. When a webhook event is received, Intershop Commerce Management will synchronize a transaction with PayPal. Transactions can have different statuses in both systems because the same operations (e.g., a refund) may be performed both in the Intershop Commerce Management back office and also in the merchant UI at PayPal.

2.3 Experience Profiles

An experience profile defines certain behavior and branding of the PayPal hosted payment pages. Currently the following branding settings are supported:

  • Logo image - a small logo that can be shown at the hosted pages
  • Brand name - a short text that is the name of the merchant shop

The following behavior is enforced by the payment connector when an experience profile is created:

  • The shipping address cannot be changed on PayPal hosted pages
  • Notes cannot be written on PayPal hosted pages

Only one experience profile is created per channel. Multiple experience profiles may exist for single API keys. Experience profiles are created or updated implicitly when the connector is initialized.

3 Setup

This section outlines the basic setup steps.


Managing and deploying the PayPal PLUS Service Connector requires a continuous integration environment set up and configured as described in Cookbook - Setup CI Infrastructure (valid to Gradle Tools 2.7).

3.1 Precondition

The package is available via Intershop's Public Nexus.

3.2 Set Up the Assembly

To add the PayPal Service Connector into your Intershop Commerce Management system, you may:

  • Incorporate the cartridge into an already existing assembly. Example follows.

    1. In the build.gradle file of the assembly add:

      cartridges {
              def paypalPlusPaymentProvider = [
              include (*(paypalPlusPaymentProvider.collect {"$it:2.1.4"}), in: [development, test, production])    
              order = listFromAssembly(baseAssembly) + paypalPlusPaymentProvider 
      assemblyBuild {
          database {
              initCartridges = ['demo_responsive_paypal_plus']
      configurations.all {
          exclude group: 'com.sun.xml.bind', module: 'jaxb-impl'


      The assembly in which the PayPal connector works should exclude the jaxb-impl artifact. That's the reason for the entry in the configuration.all closure. This is required due to version conflicts with the jersey client. The jersey client is used for consuming RESTful services provided by PayPal.

    For details about adding components to an assembly, see Recipe: Add Cartridges to an Assembly


For details about managing assembly artifacts, see:



Note that depending on the project and application in which PayPal is enabled, not all cartridges are necessary. The base functionality is included with ac_payment_paypal_plus and ac_payment_paypal_plus_bo. The other cartridges integrate into the responsive storefront reference application.

3.3 Defining File-Based Configuration

Before deploying the new assembly to a test or production environment, you may have to adjust some file-based configurations required by the PayPal Service Connector.

The PayPal Service Connector requires the following settings:

Defines which currencies are configurable for PayPal. Common setting for all payment service connectors.comma separated list of currencies, e.g., EUR, USD
The time to live of the payment wall in minutes. That is how many minutes the wall is considered valid in the merchant site after being visualized at the webshop. If the payment wall exipires, the user has to be redirected back to the page where the wall is visualized.number, e.g. 120

The recommended behavior is to verify the events (false).

true or false

According to Recipe: Change Deployed File Content With Filters this setting may be overridden within <IS_SHARE>/system/config/cartridges/

For details about adding new configuration files, see Recipe: Deploy Custom Files.

3.4 Deploying Assembly

After creating and appropriately configuring the assembly, you must deploy it to the intended target environment.

For details about deploying an assembly, see Recipe: Run the Deployment (Initial Installation / Upgrade / Downgrade).


The PayPal Service Connector requires additional post-deployment configuration steps. For details, refer to Configuration. 

4 Configuration

4.1 Enabling within the Operations Backoffice

Within the Operations Backoffice, the managed service corresponding to the PayPal PLUS Connector is by default named Securely processed by PayPal. The service has to be enabled for the Sales Organization in which the connector will be used. This is shown on the next screenshot:

4.2 Apply UI-Based Configuration

The PayPal PLUS Connector requires some post-deployment configurations in Organization Management and Commerce Management.

For details about enabling a payment service, see - Recipe: Enable a Payment Service .

The table below lists PayPal PLUS specific settings you to be set at the payment service.

Client IDThe client ID, provided by PayPal.
SecretThe secret key, provided by PayPal.
EnvironmentSwitch between test (sandbox) and live system. Options: Live and Test.
Webhook ID

The ID of the webhook that is used to accept callbacks from PayPal. Maintained in the PayPal account.
When the webhook URL is entered in the PayPal UI and the supported events are selected, PayPal assigns a webhook ID to the configuration.
This ID is essential for the webhook validation. If the validation is switched off, the webhook ID is not required.

Proxy hostThe proxy host
Proxy portThe proxy port
Proxy user nameThe proxy user (if applicable)
Proxy passwordThe proxy password (if applicable)
Logo Image

The URL of the logo that will be displayed on the PayPal page after redirect.

Allowed values: *.gif, *.jpg, or *.png. Limit the image to 190 pixels wide by 60 pixels high.
PayPal crops images that are larger. PayPal places your the image at the top of the cart review area.
PayPal recommends that the image is stored on a secure (HTTPS) server. Otherwise, web browsers display a message that checkout pages contain non-secure items.
Character length and limit: 127 single-byte alphanumeric characters.

Brand Name

The brand of the shop, shown on the PayPal hosted pages.

A label that overrides the business name in the PayPal account on the PayPal pages. Character length and limitations: 127 single-byte alphanumeric characters.

LocationDetermines the locale-specific variant of the PayPal hosted pages.

4.2.1 Notes

  • Proxy support is available for intercepting proxies. The usage of such proxies is not recommended because the idea of SSL is to make sure that there are no proxies between the merchant and PayPal. If you use such proxy, you should make sure that the certificate of the proxy is trusted by the JVM on which the app server runs. Proxy usage is highly discouraged.
  • The logo image and brand name are part of the experience profile of the merchant.

4.3 Connector initialization

Once the connector is configured, it should be initialized in the channel back office. To do so, use the ad-hoc Initialize button. The button is available in the Preferences tab, as shown in the the screenshot below.

Two things happen when the button is clicked:

  • The connectivity with PayPal is confirmed
  • An experience profile is created or updated


The connector cannot be guaranteed to work correctly without experience profile. Initializing the connector is required.

4.4 Localization

The PayPal PLUS connector provides English and German localization files for the payment specific input field labels, error messages etc.

You can find the existing localization files here: <IS.INSTANCE.SHARE>/system/cartridges/ac_payment_paypal_plus/release/localizations and <IS.INSTANCE.SHARE>/system/cartridges/ac_payment_paypal_plus_bo/release/localizations

For details about localization, see:

5 Limitations

This following table summarizes known limitations with this implementation of the connector.


Multiple shippingMultiple shipping is not supported.
Limitations in the hosted pages

The change of the shipping address in the hosted pages of PayPal is not supported. Writing notes to the merchant is also not supported.

The restrictions are enforced by an experience profile.

Payment costsPayment costs are not supported, because the payment wall is shown before a payment method is selected.

Matching price and taxation calculation

A matching price display and tax calculation is required. That is, the price type and the price display must be either both set to "gross" or both set to "net", and a corresponding taxation service must be enabled.

Carts with zero subtotals

Due to a bug in PayPal such carts are not supported. That is, such a cart may have a handling fee, a product and a promotion that covers the amount of the product but not the handling itself.
US address validationPayPal supports validation of US shipping addresses. Currently, a failing validation of such addresses is not supported.
Pending transactions

In certain rare situations PayPal may decide to mark a transaction as "pending". In this case, the merchant may be required to review all payments before capturing. Later a transaction may be captured. This scenario is supported via webhooks.

The calculations that are performed during the usual workflow of the checkout (e.g., recalculating a promotion budget) will not be triggered by the webhook currently.

Digital goodsBuying digital goods (e.g., gift certificates) is not supported due to a missing postal ("physical") address. This scenario is not supported by PayPal.
B2B Approval WorkflowWith PayPal PLUS, the money will be transmitted directly on order creation. Using the B2B Order Approval workflow with PayPal PLUS will lead to a captured order before the order itself is approved by the Buyer. If the order is not being approved by the Buyer it has to be refunded by the merchant.
IS-14545Restricted payment methods are not visible in storefront and they are handled as not applicable.
IS-14539Error when trying to use payment method with a cart fully covered by gift card

6 Changelog

6.1 Version PAYPALPLUS/2.1.4

  • Fix: PAYPALPLUS-124 - PayPal PLUS real Payment with Live environment not possible

6.2 Version PAYPALPLUS/2.1.2

  • New Feature: [PAYPALPLUS-89] - Migrate address transmission on order creation
  • Fix: PAYPALPLUS-94 Incorrect naming of the ISML extension file (this bug may influence the an assembly with multiple payment methods installed. If only PayPal PLUS is installed this is not an issue)
  • Fix: PAYPALPLUS-84 - Anonymous Checkout with PP+ returns NullPointerException


Before the payment wall is visualized on step 3 of the checkout the contents of the basket has to be sent to PayPal. In return PayPal answers with a special token which is used to display the wall.

Prior to this version the billing and shipping addresses were sent together with the basket contents. This is in a conflict with the privacy policies of PayPal and some merchants. Since this version the billing and shipping addresses are transferred via additional PATCH request sent to PayPal just before the user is redirected to the hosted pages. 

6.3 Version PAYPALPLUS/2.0.0

  • [PAYPALPLUS-3] - Migrate PayPal PLUS to Payment API 2.0 (IS 7.6.1 / 7.7)


The information provided in the Knowledge Base may not be applicable to all systems and situations. Intershop Communications will not be liable to any party for any direct or indirect damages resulting from the use of the Customer Support section of the Intershop Corporate Web site, including, without limitation, any lost profits, business interruption, loss of programs or other data on your information handling system.

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