SYSPRO and UKG integration

What moves between them

The primary flow runs from UKG into SYSPRO. After each payroll run, ml-connector reads UKG's GL payroll export and posts the journal entries into SYSPRO's general ledger, mapped to SYSPRO cost centers and GL accounts. Employee records flow from UKG into SYSPRO so headcount and compensation data align. Reference tables such as cost centers are synced in both directions. GL entries are read-only in UKG, so ml-connector never writes financial data back into payroll.

How ml-connector handles it

ml-connector stores both credential sets encrypted and maintains SYSPRO session tokens by refreshing login on timeout. On the UKG side it manages OAuth token refresh (tokens expire hourly) and also accepts HTTP Basic Auth if the customer prefers. It polls both systems on a schedule aligned to your payroll calendar rather than waiting for a push, since UKG webhook retention is only 14 days and SYSPRO has no native webhook support. Before posting any payroll GL journal into SYSPRO, ml-connector validates that all referenced cost centers and GL accounts exist in SYSPRO and are active, preventing orphaned transactions. It maps UKG cost centers, departments, and pay groups to SYSPRO dimensions, tracks the payroll GL entries posted so a retry or replay does not create duplicates, and audits every record with source system reference IDs and timestamps.

A real-world example

A mid-sized food processing company runs SYSPRO ERP for production planning, inventory, and finance across three plants, and uses UKG for payroll and HR across all locations. Before the integration, the accounting team exported payroll totals from UKG every two weeks, manually divided the labor costs by plant, and re-entered them into SYSPRO's general ledger. Month-end close required reconciling payroll headcount from UKG against SYSPRO labor expense accounts, and discrepancies were common. With SYSPRO and UKG connected, payroll GL journals from each pay run flow into SYSPRO automatically, allocated to the correct plant cost center, and employee adds and terminations keep headcount in sync. The accounting team now starts month-end with labor accounts pre-balanced and no re-entry step.

What you can do

• •Post UKG payroll GL journals into SYSPRO's general ledger after each pay run, allocated to the correct cost centers by plant or business unit.
• •Keep SYSPRO employee records and headcount synchronized with UKG hires, terminations, and status changes.
• •Map UKG cost centers, pay groups, and departments to SYSPRO GL accounts and cost center dimensions.
• •Manage SYSPRO session token refresh and UKG OAuth token expiry so neither system causes authentication outages.
• •Poll on a payroll-aligned schedule, validate all dimensions before posting, and maintain a full audit trail on every transaction.

Questions

Which direction does data move between SYSPRO and UKG?

The main flow is UKG into SYSPRO. Payroll GL journals and employee records move from UKG into SYSPRO, while cost centers are synchronized in both directions so payroll allocations land on valid SYSPRO dimensions. GL entries are read-only in UKG, so ml-connector does not write financial data back into payroll.

How does the integration handle UKG's OAuth token expiry and SYSPRO's session tokens?

ml-connector refreshes UKG OAuth tokens before they expire at one hour and maintains SYSPRO session tokens by re-logging in when the token times out. It stores both credential sets encrypted and presents them securely on every call.

What happens if a cost center or GL account in the UKG payroll journal does not exist in SYSPRO?

ml-connector validates all cost centers and GL accounts in SYSPRO before posting any payroll entry. If a dimension is missing or inactive, the transaction is flagged in the audit log and blocked from posting, preventing orphaned entries and allowing the customer to reconcile the dimension mappings before retry.