Upgrade to Manhattan Active® WMS Without Stalling the Floor
Legacy WMOS and SCALE estates get harder to change and more costly to run every year, and a major version move feels risky when the warehouse cannot stop. We plan, migrate, test, and cut you over to Manhattan Active® Warehouse Management so the move lands cleanly and your operation keeps running.
- Assessment
- Data migration
- Cutover
- Stabilization
Why WMS Upgrades and Migrations Go Wrong
Moving off a legacy platform or jumping several versions is rarely just a technical lift. Upgrades stall when:
Years of custom code and undocumented extensions have no clear path forward
Data models differ between the old platform and Active, so migration effort gets underestimated
Integrations to host, ERP, and automation break in ways no one tested for
Cutover is planned around the system instead of around peak, shifts, and order flow
The result is slipped timelines, emergency workarounds, and a go-live the floor does not trust.
WMOS or SCALE to Active
Both platforms run real operations well, so the real difference is how change reaches them.
End-to-End Upgrade and Migration, Owned From Assessment to Stabilization
We handle the full move to Manhattan Active® Warehouse Management, whether you are coming from WMOS, SCALE, or an earlier Active version that has drifted out of date.
Upgrade and Migration Assessment
We map your current platform, extensions, integrations, and data against Manhattan Active, then scope a realistic path, timeline, and risk profile before any code moves.
Data Migration
We design and validate the movement of master and transactional data into the Active model, reconciling structures so inventory, locations, and orders are accurate from day one.
Extension Re-Platforming
We assess every legacy customization, retire what the platform now handles natively, and rebuild what you still need on Manhattan Active's supported extension framework.
Regression and Cutover Testing
We build coverage across your real flows and run structured regression and cutover rehearsals, so surprises surface in a test window and not on the floor.
Phased Go-Live
We sequence the rollout by site, wave, or process to limit blast radius, keep operations moving, and give each phase a clean checkpoint and rollback point.
Post-Upgrade Stabilization
We stay through the first cycles after go-live to tune performance, clear edge cases, and hand a stable, current estate back to your team.
What Changes When the Upgrade Is Done Right
A well-run migration gives you:
Talk to Our Upgrade Team- A clean break from legacy WMOS or SCALE with no lingering shadow systems
- An estate that stays current and easy to keep on Manhattan's release cadence
- Custom logic rebuilt the supported way, so future upgrades stay simple
- Fewer cutover surprises and a go-live your operators actually trust
- Modern Active capabilities open to your business instead of blocked by old code
How Everest delivers your upgrade to Manhattan Active®
We start by learning your current platform as it actually runs, not as the documentation describes it. We inventory versions, extensions, integrations, and data, sit with the teams who use the system every shift, and separate the legacy behavior that is doing real work from what can safely retire. That honest current-state picture is what makes a migration estimate realistic instead of optimistic.
From there we work in a structured sequence: assess and scope, migrate and rebuild in a controlled environment, test against your real flows, then cut over in phases with stabilization built in. Related capabilities like Phase Zero readiness, Managed Services support, and hands-on Training slot in where they add value, so you move onto Manhattan Active® Warehouse Management with a plan the whole operation can stand behind.
What a Manhattan Active® WMS upgrade changes for the business
- Lower cost and risk of running an aging, hard-to-support platform
- Faster access to new Manhattan Active capabilities as they release
- More predictable peak performance on a modern, cloud-native WMS
- A stable foundation for automation, labor, and omnichannel growth
- Upgrades that stay routine instead of turning into projects
A Cutover Team Measured in Go-Lives
150+ Manhattan Active® go-lives, 65 across 2024 to 2025, and 300+ WMS go-lives since 1997 stand behind every cutover plan we write.
- 150+Active go-lives behind every upgrade plan
- 65Active cutovers in 2024 to 2025
- 300+WMS go-lives across legacy platforms
Frequently Asked Questions
Yes. Migrating clients from legacy WMOS and SCALE onto Manhattan Active® Warehouse Management is a core part of this service. We assess your current estate first, then plan the data migration, extension re-platforming, and phased cutover around how your operation actually runs.
Coming from WMOS or SCALE it is closer to a re-platform than a simple upgrade, because the data model and extension framework are different. Coming from an older Active version it is a more contained upgrade. We confirm which situation you are in during the assessment, so expectations are set correctly from the start.
We review every extension and integration during assessment. Some legacy customizations are no longer needed because Manhattan Active handles them natively, and those we retire. The logic you still depend on, we rebuild on the supported extension framework so future upgrades stay clean.
We plan cutover around your peak windows, shifts, and order flow, and we run regression and cutover rehearsals before go-live. Where it fits, we phase the rollout by site or process so any single step has a limited blast radius and a clear rollback point.
It depends on your starting platform, the number of sites, and how much custom logic and integration is involved. That is exactly what the upgrade and migration assessment sizes, so you get a realistic timeline before committing rather than a guess up front.
We stay through post-upgrade stabilization to tune performance and clear edge cases in the first cycles after go-live. If you want ongoing help beyond that, our Managed Services capability can support and evolve your Active estate over the long term.
That is one of the main reasons to move. Once you are on Manhattan Active® Warehouse Management with extensions built the supported way, staying on Manhattan's release cadence becomes routine, and we can keep your estate current as new versions ship.
Ready to Move Off Your Legacy WMS?
Tell us where you are today and we will map a clear, low-risk path onto Manhattan Active® Warehouse Management.
Talk to Our Upgrade Team