Sage 100 to Unleashed Software integration — real-time, two-way sync

Yes. Stacksync provides a managed, real-time two-way integration between Sage 100 and Unleashed Software: authenticate both systems, choose the objects to sync (such as Sage 100's Journal Entries and Customers), map fields visually, and changes propagate both ways in milliseconds — no code required.

On the Sage 100 side: Vendors, Inventory Items, Sales Orders, AR Invoices, plus custom fields where Sage 100 exposes them. On the Unleashed Software side: Warehouses, Stock Adjustments, Bills of Materials, Invoices. 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 Sage 100 and Unleashed Software: Shared master data; Split by function; Two-tier roll-up. Where both systems keep records of the same customers, suppliers, or organizations, a correction in either updates the other.

Sage 100: ODBC (ProvideX driver) for reads; Business Object Interface (BOI) or Sage-provided web services for writes. Authentication: Sage 100 company and user credentials; ODBC DSN credentials for direct reads. Unleashed Software: REST API. Authentication: API ID plus API key, with each request signed using an HMAC-SHA256 of the query string. Stacksync manages authentication, retries, and rate limits on both sides.

Sage 100: Writes should go through the Business Object Interface rather than direct file access, so module validation and GL postings are enforced. Unleashed Software: Every API request must carry an HMAC-SHA256 signature of the query string generated with the account's API key, sent alongside the API ID header. Stacksync's field mapping accounts for these differences between Sage 100 and Unleashed Software without custom code.