Sage 300 CRE

Accounting / Construction Enterprise Resource Planning (ERP) software. Sage 300 CRE is an integrated management suite that provides job costing, core financial accounting, payroll, project management, estimating, service operations, and property management.

Mid-sized to large enterprise commercial and residential general contractors, specialty trade contractors, heavy civil contractors, real estate developers, and property managers (typically serving companies with 10 to 500+ employees).

1971

Yes

REST

The API is deployed locally on the customer's on-premises accounting server. Requests require domain-qualified Windows user credentials, authentication tokens, and specific headers such as X-DatabaseName for company folders. Alternative direct database interfaces like ODBC have strict write limitations (e.g., Pervasive ODBC is read-only, while Timberline ODBC only permits updating select fields such as Job status). API documentation is gated and not publicly available without developer partner status.

Sage 300 CRE (formerly Timberline) is itself a core construction ERP and accounting platform, so it does not integrate into competing general ledger systems like QuickBooks or Foundation. Instead, it connects to major field and project management (PM) applications including Procore, Autodesk Construction Cloud (Autodesk Build), eSUB, Raken, RedTeam, TopBuilder CRM, and Arcoro. Because Sage 300 CRE is a legacy on-premise system, accounting-to-field integrations are primarily third-party driven or rely on middleware sync tools and connectors such as hh2 Cloud Services or Agave.

Yes, Sage operates the official Sage Marketplace (marketplace.sage.com), which lists third-party applications, ISV software, and integrations designed for Sage 300 Construction and Real Estate. Sage also maintains partner directories for authorized business partners, resellers, and consultants.

Yes, Sage 300 CRE is supported by construction-focused unified API providers like Agave (agaveapi.com), which connects to on-premise Sage 300 CRE installations using a standalone Windows agent ('Agave Connector'). General-purpose unified API platforms like Merge.dev do not support Sage 300 CRE, offering support only for cloud-native Sage products such as Sage Intacct.