OneAmerica Open Architecture Netchex Integration: What It Is and Why It Works

Last updated: August 2026

A plan sponsor’s financial advisor wants the flexibility to build a custom fund lineup instead of accepting whatever investment menu a single recordkeeper happens to bundle in. That flexibility is exactly the point of an open architecture retirement plan, but it only works well if the operational side, payroll data flowing into the plan, is just as dependable as the investment side. That is where OneAmerica Open Architecture’s connection to Netchex fits in.

Here’s what OneAmerica Open Architecture is, what Netchex is, and how the two work together to keep a flexible plan running on solid payroll data.

What Is OneAmerica Open Architecture?

OneAmerica Open Architecture supports employers seeking customizable retirement plans with access to a broad range of investment options and service providers. Their model allows plan sponsors and advisors to design solutions aligned with organizational goals, rather than being limited to a single provider’s proprietary fund lineup.

What Is Netchex?

Netchex is a payroll and HR platform built for mid-market businesses with lean HR teams and hourly or deskless workforces. Instead of stitching together separate systems for payroll, time, HR, and benefits, Netchex brings them into one platform backed by real support, so HR teams spend less time on data entry and more time on their people.

How the OneAmerica Open Architecture Netchex Integration Works

Netchex connects to OneAmerica Open Architecture through an API integration so payroll contribution data flows efficiently to a custom-built plan structure. The connection is described as a secure, two-way 360-degree integration, meaning payroll data, employee contributions, and eligibility details are synced automatically no matter how the underlying fund lineup or service providers are configured.

• Payroll contribution data flows to the plan regardless of which investment options or providers the advisor has selected
• Manual processing is reduced even as plan design and fund lineup stay flexible
• Retirement funding stays consistent across pay periods

In other words, the plan sponsor and advisor get to keep the flexibility of an open architecture design without pushing extra manual reconciliation work onto the payroll side.

Why Netchex Is the Best Payroll and HR Solution for Companies That Use OneAmerica Open Architecture

Plan sponsors who choose an open architecture structure are typically working closely with an advisor and want a payroll partner that will not force them into a rigid process just because the plan itself is customized. Flexibility on the investment side should not mean added friction on the payroll side.

Netchex is built to be that steady operational partner. Netchex is ranked #1 on G2 for service, with a 98% customer satisfaction score and 90% of support calls answered by a real, US-based person in under a minute, giving plan sponsors and their advisors a reliable point of contact whenever a payroll or contribution question comes up.

That combination of dependable technology and real service is why the average Netchex customer stays for 10 or more years, and why plan sponsors running a OneAmerica Open Architecture plan choose Netchex as their payroll and HR system of record.

Frequently Asked Questions

This page reflects publicly available information about OneAmerica Open Architecture as of 2026. Integration availability may vary by plan. Contact Netchex for current details.

Disclaimer: Any product roadmap or future plans provided herein are for informational purposes only. They do not represent a commitment to deliver any material, code, feature, or functionality. Plans may change without notification. The development, release and timing of any features or functionality described remain at the sole discretion of Netchex, its affiliates, and partners. Netchex does not give legal, tax, or accounting advice. You are responsible for ensuring your use of Netchex product meets your individual business and compliance requirements.

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