1Introduction

This manual explains the installation, configuration and usage of the payment module for WooCommerce and Open Payment Platform.

Before beginning with the installation, please make sure that you are in possession of all necessary data:

• User name and password for the login to the backend of Open Payment Platform
• WooCommerce payment module by sellxed.com/shop
• Access data to your server and shop

In case you don't yet have a contract with Open Payment Platform, you can acquire it directly through us.

Note that you must use at least PHP version 5.6 for our plugins. PHP 8 or higher is currently not supported.

1.1Installation Procedure

In this document you will find all important information for the installation of the module. It is important that you strictly follow the checklist. Only by doing so a secure usage in correspondence with all security regulations can be guaranteed.

1. Configuration of the test environment by means of the integration data from Open Payment Platform. These can be found on the test platform under
2. Configuration of the basic settings of the payment module
3. Configuration of the payment methods
4. Carrying out of a test purchase by means of the attached test data at the end of this document
5. If the test was successful, you can configure the live data in your shop. Log into the live environment with the obtained access data under:

1.2System Requirements

• PHP Version: 5.4.x or higher
• OpenSSL: Current version with support for TLS 1.2 or higher.
• fsockopen: The PHP function fsockopen must be enabled. The plugin must be able to connect to external systems over the Internet.
• PHP Functions: All common PHP functions must be enabled.

2Configuration

2.1Basic configuration of the main module

The access data for the test environment () is provided to you by Open Payment Platform.

Navigate to the main module in your Shop and fill in the following access data:

• Authorization Bearer Token (Access Token)
• Entity ID (CHANNEL ID )
• The User ID and Password are depreacted and not required anymore, use the new Authorization Bearer Token instead.
• You no longer need the parameter Security Sender and Security and Hash Secret for the integration. You can simply ignore this entry.
• The boxes for "Security Hash" and "Security Hash Secret" can be left empty unless your Payment Service Provider instructs you to do otherwise

Figure 2.1: The Authorization Bearer Token in the Open Payment Platform backend.

You also have more entry options. For example the Custom Parameters. In principle you leave these blank unlessOpen Payment Platform requires you to do otherwise.

2.2Configuration of the Payment Methods

In order to activate the payment methods and to change other payment specific settings, navigate to the settings. (A description as to where to find these settings is listed here hier)

In the configuration of the payment methods you can define which Entity ID (Channel ID) should be used for which amount. This allows you to use a non-3D Secure Channel in case of small figures. In order for you to be able to set up and get the corresponding contract please contactOpen Payment Platform.

Figure 2.1: Configuration of the payment method using the example Magento (icon image, can differ from your version of the image).

2.3Configuration Webhook

In some special cases it may happen that the payment notification sent by Open Payment Platform can not be proceed by your WooCommerce shop. We recommend to configure a so called webhook in the Open Payment Platform backen under Administration > Webbhook. Please make sure that you configure the correct URL which you can find in your WooCommerce shop under Open Payment Platform > Setup.

2.3.1Configuration Webhook by Merchant

If you have to configure the the webhook on your own, you can find the webhook URL in your WooCommerce shop at Open Payment Platform > Setup . Make sure you configure it in the Open Payment Platform Backend under Administration> Webbhook. Furthermore you have to define a so called "secret for encryption" key. Make sure that you also save the same values in the corresponding fields, as on the Picture below.

Figure 2.1: Open Payment Platform Webhook configuration in the backend under Administration > Webbhook.

2.3.2Configuration Webhook by Open Payment Platform

In some Open Payment Platform accounts you can not configure the webhook by yourself. Therefor you have to provide the webhook URL to Open Payment Platform once they setup it for you, they will provide you a specific "secret for encryption" key, which you have to configure in the main module configuration of the module in your shop.

2.4Activation and Testing

When you have activated and configured the payment methods you can run a test with help from the manual Test data.

If the tests were successful you now switch the operation mode from test mode to "Live Mode" and replace the safety features above with your personal access data for the live platform. You will receive this data directly from your Payment Service Provider. Normally the USER ID etc. should be identical for the Live Mode.

3Module Installation and Update in the WooCommerce Shop

3.1Installation

At this time you should already be in possession of the module. Should this not be the case, you can download the necessary files in your customer account in the sellxed shop (Menu "My Downloads Downloads"). In order to install the module in your shop, please carry out the following steps:

1. Download the plugin. The download can be found in your sellxed.com account under "My Downloads".
2. Unzip the archive you have just downloaded.
3. In the unzipped folder navigate to the folder "files"
4. For some shops there are different versions of the plugin provided. If this is the case open the folder which corresponds to your shop version.
5. Using your preferred FTP client upload entire content of this folder into the root directory of your shop. For some shops there is a specific folder containing the plugins. If that is the case upload the plugin into this folder. Make sure that the folders aren't replaced but merely merged.
6. If you haven't yet done so, log back into your shop.

3.2Updates and Upgrades

You have direct and unlimited access to updates and upgrades during the duration of your support contract. In order to receive constant information about available updates we ask you to subscribe to our RSS feed that we publish for your module.

More information regarding the subscription of this RSS feed can be found under: http://www.sellxed.com/en/updates_upgrades.

We only recommend an update if something doesn't work in your shop, if you want to use new feature or if there is a necessary security update.

3.2.1Update Checklist

We ask you to strictly comply with the checklist below when doing an update:

1. Always do a backup for your database and your files in your shop
2. Use always a test system to test the update process.
3. Wait until all the files are copied to the shop, clear the cache if there is one in your shop and then visit the configuration page of the main module so that the update process will be initialized.

Depending on the version it could be that the database has to be migrated. We recommend you therefore, to perform the updates in times when the shop is not visited too frequently by your customers.

3.2.2Update Instructions

Please always read the update instruction. Those instructions can be found in the changelog. If there are no special remarks, you can proceed by just overwriting the files in your system.

4Module Configuration in the WooCommerce Shop

The configuration consists of two steps. The first step is the configuration of the main module with all the basic settings (cf. Configuration of the Main Module). During the second step you can then carry out individual configurations for each payment method . This allows for full flexibility and perfect adaptation to your processes.

4.1Configuration of the Main Module

You can activate the plugin by clicking "activate" under the module WooCommerce Open Payment Platform in the menu Plugins.

After the Installation of the plugin a new menu on the dashboard will appear called Open Payment Platform . Enter all data in the corresponding fields. Each option is, furthermore, explained in short info texts in the shop.

4.2Configuration of the Payment Module

After having successfully configured the main module, you can find the settings for the individual payment methods in your shop under WooCommerce > Settings > Checkout (In earlier version it was WooCommerce > Settings > Payment Gateways). Each payment method is listed individually. Install the payment methods you wish to offer to your customers. You can carry out individual settings for each payment method and thereby optimally adapt the payment methods to your existing processes. The most central options are described in more detail further below.

By clicking on Enable the payment method is activated in your shop. For more detailed information on the settings, please refer to information provided directly within the module configuration.

4.3Direct Capturing of Transactions

The option "Capture" allows you to specify if you wish to debit payments directly or if you first wish to authorise them and then debit the payment at a later point.

Depending on your acquiring contract, a reservation is only guaranteed for a specific period of time. Should you fail to debit the payment within that period, the authorisation may therefore no longer be guaranteed. Further information on this process can be found below.

4.4Uncertain Status

You can specifically label orders for which the money is not guaranteed to be received. This allows you to manually control the order before shipment.

4.4.1Setting the order state

For each payment method you may select in which state the order should be set to depending on the booking state. This is the initial state of the order.

4.5Optional: Validation

Note: It can be that this option is not visible in your module. In this case just ignore this section.

With the option 'Validation' you can define the moment when the payment method should be made visible to the customer during the checkout process. This setting is relevant for modules where the usage depends on the customer's compliance with specific preconditions. For example, if a solvency check has to be carried out or if the payment method is only available in certain countries. In order for the credit check or address validation to also work with European characters, the charset of the "Blowfish mode" must be set to "UTF-8" for certain PSP settings.

You have the choice between these options:

• Validation before the selection of the payment method: A validation verification is carried out before the customer selects the payment method. If the customer does not fulfill the requirements, the payment method is not displayed
• Validation after selection of the payment method: The verification of the compliance occurs after the selection of the payment method and before the confirmation of the order
• During the authorisation: The validation verification is carried out by Open Payment Platform during the authorisation process. The payment method is displayed in any case

4.6Redirection / Payment Form Error

If the successful redirection to the payment page suddenly stops working or you are only able to see the header and footer of your template instead of the payment form, you might be affected of the following issue. As a first step, you should update your payment plugin to the latest version, deactivate it in the backend of WooCommerce and activate it again.

If you are using WPML it can happen that the page for the redirection of the customer to Open Payment Platform payment page results in a '404 Page Not Found' error. In this case, you will have to duplicate our checkout page under 'Pages' in the corresponding languages. In order to do so please follow these steps:

1. Go to the WooCommerce backend and select: Pages > All Pages. There you should find a Page called "Open Payment Platform Checkout".
2. Delete all existing pages called “Open Payment Platform Checkout”.
3. In the plugin section of your Wordpress dashboard, deactivate the WooCommerce Open Payment Platform plugin and activate it again. This will help you to generate a new redirection page.
4. Navigate again to Pages > All Pages. Open the configuration of the new redirection page.
5. On the right hand side under 'languages' you can now duplicate the content of this page for all of your installed languages. When you have successfully saved the changes, this page will be active for all of your languages and the error should have disappeared.

5Settings / Configuration of Payment Methods

5.1General Information About the Payment Methods

The plugin contains the most common payment methods. In case a desired payment method is not included per default, please contact us directly.

In order to be able to use a payment method, it must be activated in your account with Open Payment Platform as well as in your shop. Information about the configuration of the payment methods can be found further above.

Below you can find important information for specific payment methods that deviate from the standard process.

5.2Information on Payment Status

For each payment method you can define an initial payment status (status for authorized payments etc.). You hereby define the payment status for each state depending on the processing type of the order (captured, authorized, etc.). It's the initial status which the order assumes. Depending on the mutation carried out by you, the status can change.

5.2.1Order status "pending" / imminent payment (or similar)

Orders with the status 'pending Open Payment Platform' are pending orders. Orders are set to that status if a customer is redirected in order to pay but hasn't returned successfully or the feedback hasn't reached your shop yet (Customer closed window on the payment page and didn't complete payment). Depending on the payment method these orders will automatically be transformed into cancelled orders and the inventory will be cleared (so long as the Cronjob is activated). How long this takes depends on the characteristics of the payment method and cannot be configured.

If you have a lot of pending orders it usually means that the notifications from your webserver to Open Payment Platform are being blocked. In this case check the settings of your firewall and ask the Hoster to activate the IPs and User Agents of Open Payment Platform.

5.2.2Order status "cancelled"

Orders with the status "cancelled" have either been set to that status automatically due to a timeout, as described above, or have been cancelled directly by the customer.

5.3Klarna

You can process Klarna directly viaOpen Payment Platform.In the following we will expand on the characteristics of the Klarna setup.

5.3.1Supported / Unsupported Functions

The module does not support the following functions:

• You can not create or change any orders in the backend of WooCommerce .
• Partial activation and refunds can only be performed through the backend of Open Payment Platform () Full activation and full refunds can be performed directly inside WooCommerce. For more information visit the Chapter around transaction management.

The remaining functions are supported by the module. In the following you will find a description of the most important functions.

5.3.2Set Up / Configuration of the Payment Method

Activate the payment method as usual. Please note the following regarding the installation:

5.3.2.1Displayed Name of the Payment Method

You may change the displayed name in the frontend via title. Please use the title Invoice. Furthermore, you can define whether the Klarna logo is visible to your customers in the frontend via Display Logo.

5.3.2.2Description of the Payment Method

You may change the description of the payment method in the frontend via description. Please make sure you display the following description in your frontend: "Pay within 14 days".

5.3.2.3Select Authorization Method

We recommend to set Server as authorization method. In this case you will not be redirected to the payment page of Open Payment Platform.

5.3.2.4Klarna Merchant ID

In the payment method you can also define the Klarna Merchant ID (EID). You will either find this in your Klarna account or ask for it directly at Open Payment Platform.

5.3.3Canceling the Invoice

How to cancel invoices will be explained below in the chapter Activating / Canceling Orders. For further questions please refer to this section.

5.3.4Full Activating Invoices

For more information visit the Chapter around transaction management.

5.3.5Partial Refund and Partial Activation

Partial refunds and partial activations can only be done through the BIP of Open Payment Platform.

5.3.6On Hold Orders (Pending)

Pending orders are not supported by the module. In order you want those to be handled correctly by the system, please leave the field "Status Check interval" blank in your BIP. Please contact Open Payment Platform to make this setting.

5.3.7Testing

In order for you to test the payment method Klarna you will need specific test data. But first make sure the the operation mode is on test and the test mode is on external.

You will find the official test data for Klarna directly in the developer portal via this link: https://developers.klarna.com/en/de+php/kpm/test-credentials.

5.3.8Payment fees

If you want to charge payment fees for a specific payment method, feel free to use the compatible payment fees modules. Those fees are directly transmitted to Klarna.

6The Module in Action

Below you will find an overview of the most important features in the daily usage of the Open Payment Platform module.

6.1Useful Transaction Information on the Order

You can find an overview of the transaction information in within the order detail view. Among others, this information allows for the definite attribution of the orders to their corresponding transaction, seen in the backend of Open Payment Platform.

Figure 6.1: Transaction Information in WooCommerce.

6.2Usage of the Alias Managers / Token Solution

With the Alias Manager, your customers can securely save their credit cards with Open Payment Platform for later purchases. You can enable this by activating the option "Alias Manager" in the configuration of the Payment Method. The customer can then choose from his or her saved credit cards without having to re-enter all the details.

Figure 6.1: Alias Manager in WooCommerce

6.3Capturing of Orders

In order to be able to capture orders you must make sure that you have set the option 'Capturing' to 'deferred' in the payment method configuration.

Open the order and look for the Open Payment Platform transaction tab at the bottom. Capturing via the internal operation of WooCommerce is not supported.

Figure 6.1: Transactiondetails in the transaction tab of a specific order.

Click on "More Details" to view the transaction details. By clicking Capture button, you get into the following context.

Figure 6.1: Deferred/Manual capture of transactions within WooCommerce

Enter the amount of your choice that you wish to capture from the customer's card. By clicking Capture a direct capturing of the order occurs with Open Payment Platform.

Please be aware that cancelling the transaction does not cause a status change of the order.

6.4Refunds

You can refund already captured transactions and automatically transmit them to Open Payment Platform.

Figure 6.1: Transactionsdetails via Orders > Open Payment Platform Transactions.

By clicking Refund button, you get into the following context.

Figure 6.1: Refund of transactions within WooCommerce

Just like for the capturing, you open the order and click on the magnifying glass next to the order of your choice. Enter any refund amount of your choice in the field provided for this purpose. By clicking refund the refund request will directly be sent to Open Payment Platform and the specified amount will be credited on the customer's credit card.

Please note that you can't refund more than 100% of the original amount.

Furthermore, please be aware that processing a refund will not cause a status change of the order.

6.5Transaction Process

Each action affiliated with transaction management is logged by the module.

Figure 6.1: Transactions in the Overview of the Transaction Process

6.6Setup a Cron Job to Activate the Timed Operations

To activate the timed operations of the plugin (e.g. update service, deleting pending orders, etc.) make sure that you set up the WooCommerce Cron engine. Especially the update function allows you to automatically retrive additional information or changes of your order directly via the API of Open Payment Platform. Please note it could be that in order to use the update feature it may be necessary that Open Payment Platform activates additional options in your account.

The module uses the standard cron engine of WooCommerce. More infromation regarding the set up can be found here.

7Testing

Before switching from test to live mode it is important that you test the module extensively.

7.1Test Data

8Errors and their Solutions

You can find detailed information under http://www.sellxed.com/en/faq. Should you not be able to solve your problem with the provided information, please contact us directly under: http://www.sellxed.com/en/support

8.1Page Not Found Error prior to the redirection to Payment Page

If you are using WPML it can occur that the Pages for the display of the payment methods or for the redirection to Open Payment Platform end in a Page Not Found Error.

In this case you have to duplicate our Pages in the corresponding languages. In order to do so please follow these steps:

1. Go to the main menu and select Pages > All Pages. There you should find a Page called Open Payment Platform Checkout.
2. Open the configurations.
3. On the right hand side under languages you can now duplicate the content of this page for all of your installed languages. When you have successfully saved the changes this page will be active for all of your languages and the Error should have disappeared.

8.2The Referrer URL appears in my Analytics Tool

When a customer and the notification are redirected via Header Redirection, the Open Payment Platform Referrer URL might appear in your Analytics Tool thus hiding the original traffic source. However, most Analytic Tools are able to minimize this problem.

In case you are using Google Analytics as reporting tool, this step by step guide may help you to exclude the URLs: under bullet point 4.

9Compatibility with Third-Party Plugins

The plugins listed below are compatible with our payment modules and allow you to handle certain tasks in an easier way.

9.1Fee's and discount's within WooCommerce

To configure a Open Payment Platform payment gateways based fee and discount you will need the following 3rd-Party plugin.

• Checkout Fees for WooCommerce

9.2Multilingual WooCommerce sites

To run multilingual WooCommerce sites you will need the following 3rd-Party plugin.

• WPML for WooCommerce

9.3Birthday and gender in WooCommerce

For certain payment service providers it is necessary to check the birthday and the gender of a customer. WooCommerce does not check this by default.

10Error Logging

The module will log different unexpected errors or information depending on the configured level. If there is any issue with the module, this log can help identify the cause.

10.1Log Levels

You can configure the log level in the Open Payment Platform settings.

• Error: Logs unexpected errors only. (Default)
• Info: Logs extended information.
• Debug: Logs information helpful for debugging.

10.2Log Location

The log file is stored in wp-content/uploads/wc-logs. Please make sure the path exists and it is writable by the webserver.

11Advanced Information

This section of the manual is for advanced usage of the module. The content is for advanced users with special requirements. Everything in this section is optional and not required for the daily usage of the module.

11.1Transaction Object

This section describes how to extract information from a transaction, if you need it for further processing. E.g. you require more information of the transaction for further processing an order in your ERP system.

The code snippets in this section assume your script resides in the root folder of the shop with the default shop folder structure.

require_once( dirname(__FILE__) . '/wp-load.php' );

require_once ABSPATH.'wp-content/plugins/woocommerce_oppcw/classes/OPPCw/Util.php';

$transactionById = OPPCw_Util::getTransactionById($transactionId);
$transactionObject = $transactionById->getTransactionObject();

$transactionByExternal = OPPCw_Util::getTransactionByTransactionNumber($externalId);
$transactionObject = $transactionByExternal->getTransactionObject();

$transactionsByPostId = OPPCw_Util::getTransactionsByPostId($orderId);
foreach($transactionsByPostId as $transaction){
	$transactionObject = $transaction->getTransactionObject();
	//Do something with each object
}