Sage 100 Migration Services for Growing Companies
Move from Sage 100 to Acumatica with a proven migration process that protects your data, reduces risk, and gives your team real-time visibility across finance and operations.
If Sage 100 is creating reporting workarounds, limiting remote access, or making growth harder to manage, Acumatica gives you a more flexible cloud ERP platform — and Milestone helps you migrate with less disruption.
Milestone Information Solutions has guided companies through this exact migration.Migration Triggers
When It's Time to Think Beyond Sage 100
Sage 100 (formerly MAS 90) can support a business for years, but as technology advances, the limitations of the platform can start to show. Reporting gets harder, manual work increases, and upgrades become more difficult to justify.
Reporting Lives in Spreadsheets
Spreadsheets become the default reporting tool, pulling data from multiple sources and rebuilding the same files over and over. Month-end close only makes it worse.
Remote Access Gets Harder Across Locations
Remote and multi-location teams often struggle to access the system reliably, and even cloud-hosted versions of Sage 100 can fall short as the business grows.
Manual Work Slows You Down
Too many steps still require manual entry, workarounds, and double-checking, leaving room for errors and delays.
Upgrades Are Risky and Expensive
Customizations and third-party add-ons can make upgrades harder, more expensive, and easy to postpone, leaving companies on older versions longer than they should be.
Real-Time Visibility Becomes a Business Requirement
These challenges usually show up first in reporting, then spread into finance, operations, and decision-making. Eventually, the workarounds become too costly to manage.
Why Acumatica over Sage 100
Modern ERP without losing operational control
Most companies moving off Sage 100 are not looking to start over. They want the same depth and control, but on a platform designed for how business works today.
The goal is not to change how you run your business. It is to give you better tools to run it.
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Modern Cloud Architecture
Your team can securely access Acumatica from any device through a web browser, with no desktop installations or complex remote-access setups required. Work from the office, the field, or anywhere in between
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Real-Time Reporting and Dashboards
Real-time dashboards and drill-down reporting give finance and operations teams instant visibility into performance, transactions, and exceptions, without relying on manual spreadsheet updates.
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Licensing That Fits Growth
Acumatica's resource-based licensing is built for growing teams, allowing unlimited users to securely access the system through role-based permissions. No new license required as the business expands.
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Industry-Specific Capabilities
Acumatica offers purpose-built editions for construction, distribution, manufacturing, and more, giving teams the industry-specific workflows, reporting, and financial tools they need beyond basic accounting.
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Open API Integrations
Acumatica’s open API framework makes it easier to connect with CRM, payroll, e-commerce, shipping, and other specialty systems, helping businesses keep data and processes connected across the organization.
Not Sure if It Is Time to Move from Sage 100?
We can walk through your current setup, reporting challenges, and integrations to help you understand whether staying or moving forward makes more sense for your business.
Migration Scope
What we migrate from Sage 100
You shouldn't have to guess what will come across in a Sage 100 migration. We focus on the data and configuration your team needs to hit the ground running in Acumatica, and we review this scope with you early so there are no surprises.
- Core Configuration and GL Setup
- Open AR, AP, sales, and purchase transactions
- Selected historical data and agreed archive strategy
- Customer, Vendor, and Item Master Data
- Custom Fields, UDFs, and classifications
- Reporting logic, dashboards, and key data relationships
- Inventory and item pricing
- Bank accounts and beginning balances
Implementation Path
Our Sage 100 migration process
Every Sage 100 migration is different, but the risk of getting it wrong is the same. We follow a structured process that covers everything from initial assessment to go-live support, so your team knows what to expect at every step.
1. Assessment and Migration Roadmap
Review Sage 100 modules, add-ons, integrations, multi-entity structures, and day-one workflows before moving any data.
2. Design and Mapping
Map accounts, classifications, custom fields, reporting dimensions, and process changes into Acumatica.
3. Data Migration
Clean, extract, transform, load, and validate data through multiple testing cycles before go-live.
4. Training and More Testing
Train employees on the new system and document procedures, validate balances, aging, and key reports before go-live.
5. Go-Live and Ongoing Support
Go live on the new system with Milestone support on standby. We stay close during the first weeks to address questions, resolve issues, and make sure your team is set up for long-term success.
What industries we help with Sage 100 migrations
Whether you are in construction, distribution, manufacturing, or only need accounting and finance, Acumatica has an edition built for how your industry works and Milestone Information Solutions has experience migrating companies in each one.
Construction Contractors
Job Costing, AIA billing, project management, and field visibility.
Distribution and Wholesalers
Inventory, multiple warehouses, shipping, and e-commerce integrations.
General Business
Companies that have outgrown accounting software and need real ERP capabilities.
Manufacturers
Production planning, materials, shop floor visibility, and operational reporting.
Common Questions about Migrating From Sage 100/MAS 90
Common questions about migration timelines, data, reporting, and what to expect when working with Milestone Information Solutions.
General Questions: Timeline and Scope
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How long does a typical Sage 100 (MAS 90) migration to Acumatica take?
For most small to mid‑market companies, a Sage 100 (MAS 90) to Acumatica migration takes about 3 to 6 months from initial assessment through go‑live. The exact timeline depends on the number of entities, modules, integrations, and how much historical data is in scope. A typical engagement moves through discovery and scoping, data mapping and configuration, user training, and go‑live support. Simpler, single‑entity implementations can sometimes move faster, and more complex environments can take slightly longer, but a good planning window is 4 to 6 months. Every migration is scoped individually, and we’ll give you a specific timeline estimate after the initial assessment call.
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How much internal time will our team need to commit to this migration?Your team’s heaviest involvement comes during discovery and scoping, data cleanup, and testing. Finance and operations leads typically spend a few hours per week reviewing data, answering configuration questions, and signing off on decisions. Data cleanup can vary significantly based on the condition of your existing data, and it’s often the area teams underestimate. End users get involved closer to go‑live for hands‑on training. As a rough guide, your internal project lead should plan for 3 to 5 hours per week throughout the project when working with Milestone Information Solutions.
Data, Reporting, and Support
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Will we lose access to our historical Sage 100 / MAS 90 data when we move to Acumatica?
No. We migrate the historical data your team still needs day‑to‑day into Acumatica, and we agree on an archive strategy for older records before go‑live. Most companies keep 1 to 3 years of transactional history in Acumatica and archive the rest in a read‑only format that remains accessible if you ever need to reference it.
Milestone Information Solutions reviews your archive strategy with you as part of the migration scope so nothing important gets left behind and your team is never without access to prior records.
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Can our existing Sage 100 reports and custom fields be rebuilt in Acumatica?
In most cases, yes, and in many cases your reporting actually improves. We map your Sage 100 chart of accounts and custom fields into Acumatica's structure during the migration. Key reports are rebuilt to work correctly with the new account structure and reporting dimensions. Acumatica's native reporting tools, including Generic Inquiries, dashboards, and its financial report writer, usually give your team more flexibility than a typical Sage 100 reporting setup.
If you rely on Crystal Reports or third-party reporting tools today, we review those during scoping and identify what will be rebuilt natively and what may need a different approach. Nothing is left to chance. Milestone Information Solutions validates reports before go-live as part of user acceptance testing so your team can move forward with confidence.
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What happens if we find issues during testing or after go-live?
Data migration includes multiple test cycles where we validate balances, aging, and key reports before go‑live. If issues surface during testing or shortly after go‑live, Milestone Information Solutions works with your team to diagnose the cause, correct the data or configuration, and retest so you can move forward confidently.
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Does Milestone Information Solutions provide training and support after we go live on Acumatica?
Yes. We train each of your teams on Acumatica using your actual processes, document key procedures, and provide hands-on support during the first weeks after go-live. Our goal is to make sure your users are confident and that the system supports your day-to-day workflows long after the transition.
Acumatica is the Platform. Milestone Information Solutions makes it work for your business.
We're here to solve what's holding you back.
From setup to support, we guide your team, align the system with your goals, and make sure Acumatica works for your business.
- Implementation that fits your business - from people who know accounting.
- Expert support from a team that knows your setup.
- Long-term partnership - not just a handoff.