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Planned System Maintenance Notification - Expiring Certificate Update - 2024 is renewing an expiring leaf certificate. This change only affects merchants using's APIs on their website or payment application. The root and intermediate certificates will remain the same. If your site or application trusts Entrust's root and intermediate certificate, this change will be transparent.

However, if your site or application requires trusting a leaf certificate, you must install or trust the new leaf certificate before the update. The update is scheduled for 2/21/2024 ~9:00pm PT - 02/22/2024 ~10:30pm PT for both Sandbox and Product.

For more information and to obtain the necessary certificates, please refer to our support article: How do I obtain Authorize.nets Certificate for my host/solution provider?

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