Workday Financial Management and JAGGAER integration

What moves between them

The main flow runs from Workday into JAGGAER. After a Workday invoice is recorded or a purchase order is updated, ml-connector reads those records on a 30 to 60 minute schedule and posts them to JAGGAER via the J1P API, matching Workday supplier accounts to JAGGAER vendor records and Workday GL accounts to JAGGAER GL dimensions. Reverse flows (JAGGAER purchase order confirmations back to Workday) are possible via Workday Outbound Messaging but require per-process admin setup on the Workday side.

How ml-connector handles it

ml-connector stores both the Workday ISU credentials and the JAGGAER OAuth2 client secrets encrypted, refreshes the Workday REST access token when needed, and exchanges JAGGAER client credentials for a fresh bearer token on each J1P call. On the Workday side it accepts the tenant-specific hostname and builds the SOAP and REST endpoints dynamically, then polls using date-range filters to find new or changed invoices and purchase orders since the last run. On the JAGGAER side it accepts the customer-specific J1P instance URL and posts records via the authenticated J1P REST endpoint, mapping Workday supplier IDs and GL account codes to the matching JAGGAER vendor and GL account identifiers. Because both Workday and JAGGAER are read-optimized, ml-connector handles rate-limit responses (429 from JAGGAER, tenant throttling from Workday) by backing off and retrying, and it tracks OAuth2 token expiry to avoid failures mid-request. Every record carries a full audit trail and can be replayed if a downstream call fails.

A real-world example

A mid-sized enterprise manufactures industrial equipment and uses Workday Financial Management to track supplier invoices and purchase orders across three plants. Procurement is managed in JAGGAER, where sourcing teams manage contracts and the Source-to-Pay process. Before the integration, the finance team reviewed invoices in Workday each day and manually entered them into JAGGAER's vendor invoice log, then spent time reconciling Workday AP balances against JAGGAER purchase order and invoice totals. With Workday and JAGGAER connected, each Workday invoice posts to JAGGAER automatically on a daily schedule, mapped to the matching vendor and GL account, and the manual re-entry step is eliminated. Month-end closes with AP already reconciled across both systems.

What you can do

• •Post Workday supplier invoices and purchase orders into JAGGAER via the J1P REST API on a 30 to 60 minute schedule.
• •Map Workday supplier accounts and GL account codes to JAGGAER vendors and GL dimensions so invoices land on the correct accounts.
• •Authenticate Workday with ISU credentials and OAuth2 refresh tokens, and JAGGAER with OAuth2 Client Credentials.
• •Handle rate limits and token expiry on both sides with retries and exponential backoff.
• •Maintain a full audit trail on every record and support replay if a downstream call fails.

Questions

Which direction do records move between Workday Financial Management and JAGGAER?

The main flow is Workday into JAGGAER. Supplier invoices and purchase orders from Workday post to JAGGAER purchase orders and invoices via the J1P REST API. Reverse flows from JAGGAER back to Workday are possible but require JAGGAER professional services setup and Workday Outbound Messaging configuration on the customer side.

Does JAGGAER's J1P OAuth2 setup need special configuration?

Yes. JAGGAER provisions the client_id and client_secret during customer onboarding, and ml-connector stores them encrypted and exchanges them for a fresh bearer token on each J1P call. The credentials are specific to the customer instance, so no cross-customer bleed is possible.

How does the integration handle Workday's lack of webhooks?

ml-connector polls Workday on a 30 to 60 minute schedule using date-range filters on the supplier invoice and purchase order endpoints. Workday supports Outbound Messaging for reverse flows, but that requires per-process admin setup in the tenant. The polling interval is tuned to balance freshness against Workday's minimum safe polling threshold of 5 minutes.