Sage 100

by Sage

Sage 100 (formerly Sage MAS 90 and MAS 200) is an entry-level ERP for small and growing businesses that have outgrown basic accounting software. It adds inventory, light manufacturing, and distribution on top of core finance, sold as modules so buyers can start small and expand. It is available on-premise or partner-hosted, and is sold and implemented through a long-established partner channel.

Best for

Small and growing product businesses outgrowing entry accounting that need inventory and distribution

Reported pricing

Quote-based via partners; reported low-to-mid five figures per year depending on modules and users

Organization size

Small (under 50 employees) · Mid-market (50–500 employees)

Deployment

Cloud · On-premises

Fund accounting

No (or via add-ons)

Multi-entity consolidation

Limited

Where it wins

✓ Modular: start with finance and add inventory, manufacturing, or payroll as you grow
✓ Long-established product with a deep, experienced partner channel
✓ A natural upgrade path for small businesses outgrowing entry accounting software

Where it doesn't

✗ Rooted in on-premise heritage; less cloud-native than newer competitors
✗ Partner-dependent for implementation, pricing, and support
✗ Not built for large, multi-country, or highly complex operations (that is Sage X3 territory)

Strengths

Core financialsInventory & distributionManufacturing

Common industries

Wholesale & Distribution · Manufacturing · Construction · Professional Services

Integrations

Moderate ecosystem

Sage Marketplace plus a long tail of MAS 90/200-era ISV add-ons. Moderate: a mature third-party add-on ecosystem built up over decades, though delivered largely through partners rather than a self-serve app store.

Notable integrations

Long-standing ISV add-ons for CRM, EDI, shipping, and credit card processingSage-ecosystem payroll and reporting toolsiPaaS and custom connectivity via partners

API quality: Integration is available but leans on partner and ISV connectors and custom work rather than a modern self-serve API and app marketplace, reflecting the product's on-premise heritage.

What doesn't connect cleanly

— No large self-serve connector marketplace like the cloud-native suites offer
— Modern REST-first, iPaaS-friendly integration is weaker than NetSuite or Acumatica
— Cloud is partner-hosted rather than true multi-tenant SaaS, which shapes update and integration workflows

Not sure if Sage 100 fits?

Take the 2-minute matching quiz