Payment method with WorldPay

The basic details of working with WorldPay can be found in WorldPay , below.
The ordering of the individual points and their entry fields and settings corresponds to the general process for configuring the WorldPay payment method.
1. Register with WorldPay
Click this link to open the WorldPay registration page. After registration is complete, you will receive an installation ID. Enter this installation ID in the Installation ID field in section 2.
2. To your WorldPay administration page
Click this link to open the WorldPay administration page. You need to set a few parameters in the WorldPay administration so that the data exchange between the WorldPay system and your shop can function correctly.
On the WorldPay administration page, call up Installation management; see Figure 20.
Figure 20: Entering the URL and password to forward transaction data for WorldPay
In the Payment Response URL field, enter the Internet address displayed in the Payment Response URL field in the shop administration.
Enter the same Payment Response password in both systems. When data is transmitted, both entries are compared. If the passwords match, the transaction continues.
3. Settings for payment processing
In the Transaction is finalised drop-down menu, you can specify how the transaction is to be finalised and the point at which the payment is booked from the customer's account.
Table 38: options for finalising the transaction

Option
Description
Manually on the WorldPay administration page
The amount is not deducted from the customer's account until you have finalised the order in your WorldPay account.
Automatically with the order
The amount is deducted from the customer's account after he has finished entering information with WorldPay.

For more information, see WorldPay transactions, below.
Before you make the payment method available for your customers, test the process to make sure it functions correctly. You can do this by selecting the corresponding mode in the Operational mode field:
Table 39: options for the operational mode

Option
Description
Test mode - OK
The transaction data is not validated in WorldPay but is otherwise processed normally. You can use this procedure to conduct positive test runs. The responses from WorldPay are marked accordingly.
Test mode - Error
Use this option to simulate transactions that are returned by WorldPay as invalid. This allows you to perform negative test runs.
Live
This is the setting for real transactions that customers perform with WorldPay using your shop.

Note: As soon as you have sufficiently tested the payment method and have released it for your customers, set the operational mode to Live. This will allow the invoiced amount to be deducted from your customer's account.
4. Activate your account
In order to activate the WorldPay payment method and use the WorldPay logo on your shop page, you need to have your shop accepted and your account activated by WorldPay. To accomplish this, click the Activate your WorldPay account link and complete the form that is displayed.
5. Select credit cards
Once you have completed activation with WorldPay, you are allowed to display the WorldPay logo in your shop. In addition, you can also display the logos of the credit cards for which you have a contract with WorldPay.
Note: The credit card logos are placed on the Web page and displayed using a WorldPay page element. For more on working with page elements, see Page elements and navigation, below.
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