Sage 300 and JAGGAER integration

What moves between them

The main flow moves vendor and GL account masters from Sage 300 into JAGGAER. APVendors and GLAccounts are read from Sage 300 on a daily or weekly schedule and posted to JAGGAER so that sourcing events land on valid vendor and account dimensions. Purchase orders and invoices flow in the opposite direction: JAGGAER purchase orders and approved invoices are polled and inserted into Sage 300 as POPurchaseOrders and APInvoiceBatches so procurement and finance records stay synchronized. The sync cadence is aligned with your procurement cycle and accounts payable period close.

How ml-connector handles it

ml-connector stores Sage 300 credentials (username, password) and JAGGAER OAuth2 credentials (client_id, client_secret) encrypted. On the Sage 300 side, it uses HTTP Basic Auth with the uppercase username and password on every request to the customer's self-hosted instance URL, and refreshes API calls if a session expires. On the JAGGAER side, it exchanges the client credentials for an OAuth2 bearer token at the J1P token endpoint and attaches the token to subsequent requests, refreshing when the token nears expiry. Sage 300 vendors and GL accounts are mapped to JAGGAER suppliers and GL accounts by a matching key (vendor number or GL account code). Purchase orders are queried from JAGGAER and transformed to Sage 300's POPurchaseOrders structure; invoices are similarly mapped to APInvoiceBatches with line items matched to the corresponding PO. Because both systems are pull-based (Sage 300 has no webhooks and JAGGAER push requires professional services setup), ml-connector polls on a fixed schedule and tracks the watermark of the last successful sync to avoid duplicate imports. Every record carries a full audit trail.

A real-world example

A mid-size manufacturing business runs Sage 300 on-premise for accounting, order entry, and inventory, and has recently moved procurement and supplier collaboration into JAGGAER to modernize sourcing. Before the integration, the procurement team managed vendors in JAGGAER, but finance still maintained a separate vendor master in Sage 300, and POs created in JAGGAER had to be re-entered into Sage 300's OEOrders module by hand before invoices could be matched. With Sage 300 and JAGGAER connected, new vendors onboarded in JAGGAER are automatically synced to Sage 300, POs flow from JAGGAER into Sage 300 OEOrders automatically, and invoices received through JAGGAER post directly into AP without manual data entry. The finance team now spends time on reconciliation and analysis instead of re-keying transactions.

What you can do

• •Sync vendor masters from Sage 300 APVendors into JAGGAER suppliers so sourcing always references valid vendors from your chart of accounts.
• •Keep GL account dimensions aligned: push Sage 300 GLAccounts and GLSegments to JAGGAER so cost allocations and account assignments stay in sync.
• •Automatically import JAGGAER purchase orders into Sage 300 OEOrders with line items, so orders flow from sourcing into order entry without re-entry.
• •Sync approved JAGGAER invoices into Sage 300 APInvoiceBatches matched to their corresponding purchase orders, so AP can process them immediately.
• •Authenticate Sage 300 with HTTP Basic Auth over HTTPS and JAGGAER with OAuth2 Client Credentials, with automatic token refresh and encrypted credential storage.

Questions

Which direction does data flow between Sage 300 and JAGGAER?

Vendor and GL account masters flow from Sage 300 into JAGGAER to ensure sourcing decisions reference valid ERP entities. Purchase orders and invoices flow from JAGGAER back into Sage 300 so procurement stays synchronized with order entry and accounts payable. Both directions update on a scheduled poll aligned with your procurement and AP cycles.

How does ml-connector handle the different authentication methods between Sage 300 and JAGGAER?

ml-connector encrypts both Sage 300 HTTP Basic credentials (username and password in uppercase) and JAGGAER OAuth2 credentials (client_id and client_secret). On each request it sends the Basic Auth header to Sage 300's self-hosted instance URL and exchanges JAGGAER credentials for a bearer token, refreshing the token before expiry to avoid mid-sync failures.

Since Sage 300 is self-hosted and JAGGAER is cloud-based, how does ml-connector know where to send requests?

ml-connector accepts the customer's Sage 300 instance URL (e.g., https://sage300.customerdomain.com/Sage300WebApi/) and JAGGAER instance URL separately during setup, and routes API calls to each endpoint accordingly. Both systems use polling on a schedule rather than webhooks, so ml-connector checks both systems on the cadence you define and processes changes incrementally.