MAS 90 / MAS 200 / LEGACY SAGE / MIGRATIONS

MAS 90 & MAS 200are legacy names, not forgotten systems.

We actively support older MAS 90, MAS 200, and legacy Sage 100 environments—and regularly migrate long-running systems forward without pretending their history does not matter.

Yes, we still work on the old stuff.

Many businesses still rely on older MAS 90, MAS 200, and Sage 100 environments because those systems contain years of history, reporting, integrations, customizations, and business processes that work.

We do not treat a legacy environment as something to be embarrassed about. We support it, understand it, and help decide what should happen next.

Legacy-to-current migrations are bread-and-butter work.

  • Assessment of old MAS 90 / MAS 200 environments
  • Version-to-version migration planning
  • Server and workstation transitions
  • Payroll migration considerations
  • Crystal Reports and custom-report review
  • Providex, ODBC, and data-access dependencies
  • Integration and customization review
  • Testing, validation, and post-migration troubleshooting

Years of business logic deserve more than a clean install.

The challenge is rarely just moving data. The real work is understanding what the business depends on and carrying that context into the newer environment without losing reports, workflows, integrations, or historical access that still matter.

Good questions are welcome here.

Do you still support MAS 90 and MAS 200?

Yes. All Kleer actively supports MAS 90, MAS 200, and older Sage 100 environments.

Can you migrate an old MAS 90 or MAS 200 system to a current Sage 100 environment?

Yes. Legacy migrations are a core part of All Kleer's work, including environment review, reporting, payroll, integrations, data access, testing, and the dependencies surrounding the old system.

Do we have to clean up our old system before calling?

No. Long-running environments accumulate history, customizations, reports, and workarounds. Understanding that reality is part of the migration and support process.

A legacy migration can also be the right time to rethink where Sage runs.

Older MAS 90, MAS 200, and Sage 100 environments often reach a point where the application, server, and remote-access architecture all need attention together.

Explore Hosted & Remote Environment Migrations →

Old Sage systems deserve people who remember how they work.

Whether you need to keep it running, understand it, or move it forward, legacy Sage is welcome here.

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