ACI Worldwide Card Payments

Accept secure credit card payments, which is built on the ACI Payments Orchestration Platform ACI Worldwide’s embedded Shopify Credit Card app enables merchants to accept card payments quickly and securely within Shopify checkout. New Shopify merchants can launch faster using ACI’s flexible, configuration‑driven setup. For growing businesses, the app delivers reliable, scalable card processing to support higher volumes, international expansion, and a seamless checkout experience.

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This app's listing is still live, but it recently dropped out of Shopify's App Store search index.