The Migration Story · Manufacturing

Off the legacy ERP. No operational downtime.

How an FDA-regulated U.S. manufacturer took back control of its software — replacing a monolithic ERP module by module, without ever stopping the line.

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The Starting Point

One monolithic ERP. Paying for every module.

In Use In Use In Use Paid, Unused Paid, Unused Paid, Unused Paid, Unused

Needed, Missing Needed, Missing Needed, Missing Needed, Missing

A few modules in use. The ones that mattered — not in the package at all. Meanwhile, on the production floor, output was reported as end-of-week guesstimates. Costing was opaque, and the lot traceability the FDA expects was something the system couldn’t deliver.

The Slingr Approach

A glide path — not a rip-and-replace.

No big-bang cutover. No data cleanup project before the real project. Each phase replaced one piece of the operation and proved itself in production before the next one started.

Phase 1

Purchasing & receiving

Parts, suppliers, purchase orders, and receiving went first — focused, custom-built, and synced live with the legacy system, which kept running untouched.

Phase 2

Inventory & production

Lot traceability, BOMs, work orders, and costing moved onto real-time data — every lot traced, every location scanned, FDA 21 CFR Part 11 audit trails built in. Plus a suite of operational reports the packaged ERP never offered. The operation went from reactive to proactive.

Phase 3

Sales & financials — last

QuickBooks, WooCommerce, and payments came only once everything else was stable. Money moves last — when the systems feeding it are already proven.

Module by module. Core systems of record never disrupted. No data cleanup required first.

Where Slingr Solutions Comes In

This is what we do — for any system that's holding you back.

Slingr Solutions builds AI-accelerated custom software for the systems your business actually runs on — ERP, MES, scheduling, quality, inventory. The migration in this story is our standard playbook, not a one-off.

Surround, substitute, sunset

We start by surrounding the legacy system — building the missing pieces alongside it, not inside it. Then we substitute the modules that hurt, one at a time, each proven in production before the next begins. Only when nothing depends on the old system does it sunset.

Working software every two weeks

AI-accelerated engineering teams ship production-ready software in two-week cycles. Discovery, design, build, and ongoing management are all AI-assisted — which is why a full ERP exit takes a fraction of the usual time.

Your floor, your rules

Packaged ERPs make your operation fit their modules. We build around how your production, scheduling, and quality processes actually run — including the modules the package never had.

An asset, not a run rate.

What this manufacturer keeps: the code, data and specs we built for them — running in a dedicated Google Cloud environment Slingr hosts and fully manages for them — theirs and portable. Refinements beyond the original scope keep shipping — new needs land in two-week sprints on software they own, not as another subscription. No per-seat licensing. No paying for modules nobody uses. Nothing underneath the app is rented.