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How One Bank Automated Their Merchant IH Filter on AS400→€”and Why It Matters

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Merchant acquiring operations are complex, especially when you're dealing with global franchises like Visa, MasterCard, and AMEX. One of our clients→€”a major financial institution in Latin America→€”relied on IBM i (AS400) to manage these operations. But one critical piece still depended on human input: the IH filter.

This is how we helped them automate it 100%, reduce risk, and process updates in seconds.

What Is the IH Filter?

The IH filter is responsible for correctly routing merchant configurations tied to FISERV and various franchises. It ensures every transaction gets settled properly and commissions are calculated accurately. It directly impacts:

The Challenge: Manual Input in a High-Stakes System

Although most of the acquiring process was already automated, daily human intervention was still required. This presented several problems:

The Solution: Full Automation on IBM i Using SQLRPG

We designed a custom solution directly on IBM i using SQLRPG→€”a powerful combo for high-performance, low-risk automation.

Dynamic Configurations
Modular Architecture
Built-in Validations
End-to-End Automation
High Performance (hours →†’ seconds)
Audit Ready →€” Complete Logging

Business Impact

→š¡
Processing time dropped from hours to seconds
🛡️
Client eliminated manual risk entirely
💰
Commission payments now more accurate and timely
📈
Bank has a more scalable, maintainable core process

Legacy Isn't a Problem→€”It's an Opportunity

This case proves that legacy platforms like IBM i (AS400) can still be the foundation for modern, efficient, and scalable operations. You don't need a cloud migration or a full rewrite. You just need the right expertise.

Still running your business on AS400?

You're not alone. We help companies like yours turn legacy systems into business assets.

Talk to our AS400 team →†’