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    • CommentAuthormrsmotto
    • CommentTimeSep 13th 2015

    Hi There,

    I have received an email from paypal regarding upgrades to their end point including the Instant Payment Notification.

    What I want to know is will this affect the OIO plugin?

    Here is the full message

    As we have previously communicated to you, PayPal is upgrading the certificate for www.paypal.com to SHA-256. This endpoint is also used by merchants using the Instant Payment Notification (IPN) product.

    This upgrade is scheduled for 9/30/2015; however, we may need to change this date on short notice to you to align to the industry security standard.

    You’re receiving this notification because you’ve been identified as a merchant who has used IPN endpoints within the past year. If you have not made the necessary changes, we urge you to do so right away to avoid a disruption of your service!
    Because these changes are technical in nature, we advise that you consult with your individuals responsible for your PayPal integration. They will be able to identify what, if any, changes are needed. Please share this email and the hyperlinks below with your technical contact for evaluation.

    Testing in the Sandbox is one of the best ways to make sure your integrations work. Sandbox endpoints have been upgraded to accept secure connections by the SHA-256 Certificates.

    Full technical details can be found in our Merchant Security System Upgrade Guide. In addition, our 2015-2016 SSL Certificate Change microsite contains a schedule of our service upgrade plan.

    Thanks for your patience as we continue to improve our services.

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    • CommentAuthorSimon
    • CommentTimeSep 13th 2015
    Project Admin

    The SSL compatibility mentioned in the article is ultimately down to the server you're using (as to whether it accepts SHA-256 certificates or not), which would be a question for your web host.

    Paypal have however provided a fallback option for those servers that are not compatible. I've therefore updated OIO's paypal module to use that fallback (although it will also be switched to SHA-256 in mid 2016).

    You can download the updated paypal module using the URL below (or re-download the latest OIO files):


    Then just upload the paypal folder to OIO's "modules" directory on your server.

    Need help?  Quick start guide | Troubleshooting | All help topics