Marketo to Sage 300 integration — real-time, two-way sync

Yes. Stacksync provides a managed, real-time two-way integration between Marketo and Sage 300: authenticate both systems, choose the objects to sync (such as Marketo's Opportunities and Opportunity Roles and Custom Objects), map fields visually, and changes propagate both ways in milliseconds — no code required.

On the Sage 300 side: Purchase Orders, Inventory Items, AR Invoices and Receipts, AR Customers, plus custom fields where Sage 300 exposes them. On the Marketo side: Leads, Companies, Opportunities and Opportunity Roles, Custom Objects. Stacksync auto-detects both schemas and converts types between the two systems.

Yes. Each object mapping can be bidirectional or restricted to a single direction (both systems accept writes). Read-only mirrors, one-way pushes, and full two-way sync can be mixed in the same integration.

Common patterns for Marketo and Sage 300: Where Marketo captures new people: signups become customer records; Consent and contact changes travel; Purchase history drives segmentation. Registrations, form fills, or new subscribers in Marketo create or update the corresponding record in Sage 300, so the back office sees them without anyone re-keying.

Marketo: Marketo REST API (JSON over HTTPS) for Leads, Companies, Opportunities, Custom Objects, Activities, Lists, Programs, and Campaigns, plus an asynchronous Bulk Import (leads) and Bulk Extract (leads/activities/program members/custom objects) API and an Asset REST API for emails, forms, and landing pages. Authentication: OAuth 2.0 client_credentials (2-legged): GET the Identity URL /oauth/token?grant_type=client_credentials with a Custom Service client_id and client_secret to receive an access token valid for 3600 seconds, then send it as Authorization: Bearer on each call. The instance base URL is https://{munchkinId}.mktorest.com; passing the token as an access_token query parameter is deprecated (removal July 31, 2026). Sage 300: Sage 300 Web API (REST) on newer releases; .NET/COM SDK and direct SQL Server access on-prem. Authentication: Sage 300 user credentials (Basic auth on the Web API); database credentials for direct SQL reads. Stacksync manages authentication, retries, and rate limits on both sides.

Sage 300: Sage 300 (formerly Accpac) stores each company's data in its own SQL Server database with module-prefixed tables, so direct SQL reads are a common integration path on-prem. Marketo: Authentication is OAuth 2.0 client_credentials: GET the Identity URL /oauth/token to receive an access token valid for 3600 seconds, sent as an Authorization: Bearer header; the instance base URL is https://{munchkinId}.mktorest.com. Stacksync's field mapping accounts for these differences between Marketo and Sage 300 without custom code.