WorldPay (IPN used by other script)
Learn how to integrate WorldPay (IPN used by other script) with Post Affiliate Pro to track sales and commissions seamlessly, including support for FuturePay re...


Learn how to integrate WorldPay with Post Affiliate Pro to enhance your affiliate software. Discover the integration steps, key features of WorldPay, its pricing, pros and cons, and top alternatives for payment processing.
A leading global payments provider for companies of all sizes.
WorldPay integration is similar to PayPal, it also uses WorldPay callback.
Note! This is description of integration with WorldPay if you useWorldPay buttons on your web pages. If you use WorldPay as a processingsystem in your shopping cart, use the method for integrating withshopping cart, not these steps.
Also, make sure you don’t alreadyuse WorldPay callback for another purpose, such as some kind of digitaldelivery or membership registration.
Since version 4.2.5.0 integration with WorldPay works also with FuturePayrecurring commissions .
Now add the following code into EVERY WorldPay button form:
<input type="hidden" name="M_aid" value="" id="pap_dx8vc2s5">
<script id="pap_x2s6df8d" src="https://URL_TO_PostAffiliatePro/scripts/notifysale.php" type="text/javascript">
</script>
This will assign cookie value into M_aid and this value will be sent to PAP for processing.
Example of updated WorldPay form:
<form action="http://www.worldpay.com....>
...
<input type="hidden" name="M_aid" value="" id="pap_dx8vc2s5">
<script id="pap_x2s6df8d" src="https://URL_TO_PostAffiliatePro/scripts/notifysale.php" type="text/javascript">
</script>
...
</form>
Next step is to configure WorldPay to use callback to our worldpayscript. You should specify there full url to the worldpay script:
https://URL_TO_PostAffiliatePro/plugins/WorldPay/worldpay.php
Now activate plugin “WorldPay callback handling” and that’s it. This is all that is required. Now whenever there’s sale, WorldPay willuse its callback function to call our sale tracking script, and systemwill generate commission for the affiliate.
WorldPay is a comprehensive payment processing solution designed to facilitate secure and efficient transactions for businesses of all sizes. Offering a wide array of features, WorldPay supports credit and debit card payments, recurring billing, ACH payments, eCheck processing, and provides end-to-end encryption to ensure the security of cardholder data.
WorldPay’s history dates back to 1971 when it was established as Midwest Payment Systems under Fifth Third Bank. Over the years, it evolved into Vantiv in 2011 and went public in 2012. A significant milestone occurred in 2017 when Vantiv acquired WorldPay, leading to the formation of WorldPay, Inc. In 2019, WorldPay merged with FIS in one of the industry’s largest consolidations. By 2024, WorldPay was spun off from FIS and acquired by GTCR, reestablishing itself as an independent entity.
WorldPay primarily caters to multichannel retailers and small business merchants. Its target market includes large internet-led multinational firms, U.S.-based merchants focusing on small to medium-sized businesses, and U.K. merchants ranging from micro to large corporations. By offering diverse payment solutions across multiple channels, WorldPay enhances business capabilities and supports growth.
WorldPay offers a robust set of features designed to meet the diverse needs of businesses:
WorldPay’s pricing includes various transaction fees and additional charges:
Users of WorldPay have provided mixed feedback based on their experiences:
While users appreciate the comprehensive services provided by WorldPay, concerns about the pricing structure and lack of transparency have been highlighted.
For more in-depth analysis and reviews of WorldPay, consider watching the following YouTube videos:
Businesses exploring other payment processing options may consider the following alternatives:
WorldPay is a robust solution for business
Lucia is a talented content editor who ensures the seamless publication of content across multiple platforms.

Boost your affiliate marketing by integrating WorldPay with Post Affiliate Pro. Enjoy seamless payment processing, recurring commissions, and powerful affiliate tracking features.
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