# UKG (Kronos) with SAP S/4HANA and SuccessFactors: syncing time and labor data

> Source: https://netray.co/stack/ukg-sync-for-sap-s4hana-successfactors
> Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems.
> Section: ERP Stack

## Short answer

UKG Sync for SAP from CloudApper is a no-code connector that syncs UKG (Kronos) time and labor data with SuccessFactors and S/4HANA. It is aimed at labor cost reconciliation between the time system and SAP. It is a third-party API connector, not a UKG or SAP product.

## Erp

SAP S/4HANA

## Erp Key

sap-s4hana

## On Prem

true

## Product

UKG Sync for SAP

## Vendor

CloudApper

## Category

Time and attendance integration

## Integration

**Method:** Third-party API connector

**Detail:** The connector uses APIs on the UKG side and on the SAP side to move data on a schedule or on events. Because it is a third-party tool, treat it as community-grade integration rather than a vendor-certified one, and ask CloudApper for the supported SAP interfaces and versions.

**Method:** No-code mapping layer

**Detail:** Field mappings, transformations and schedules are configured in the connector. This speeds delivery, but the mapping logic still has to reflect your pay rules, cost centers and employee identifiers.

## Data Flows

**From:** UKG (Kronos)

**To:** SuccessFactors or S/4HANA

**Data:** Punches, hours worked, pay codes, absences and overtime

**Trigger:** Scheduled sync or period close

**From:** SuccessFactors or S/4HANA

**To:** UKG

**Data:** Employee master, organisation, cost center and job data

**Trigger:** Hire, transfer or change

**From:** UKG

**To:** S/4HANA costing

**Data:** Labor hours by cost center for allocation

**Trigger:** Approved timecards

**From:** Connector

**To:** Operations team

**Data:** Sync errors and unmatched records

**Trigger:** Failed or partial sync

## Setup

### Agree on identifiers

**Detail:** Choose one employee ID that exists in UKG, SuccessFactors and S/4HANA, and clean up mismatches first.

### Map pay codes

**Detail:** Map UKG pay codes, shifts and overtime categories to SAP wage types or time types.

### Map cost objects

**Detail:** Align UKG labor levels with SAP cost centers, orders or WBS elements.

### Provision API access

**Detail:** Create service accounts with minimal rights in UKG and SAP and store credentials securely.

### Configure and test sync

**Detail:** Set direction, frequency and filters, and test with a small group across a full pay period.

### Build reconciliation reports

**Detail:** Compare hours in UKG with hours posted in SAP and investigate differences before payroll runs.

### Plan for upgrades

**Detail:** Track UKG and SAP release changes that could affect APIs the connector depends on.

## Pitfalls

- Employee ID mismatches that drop or duplicate records.
- Pay code mapping gaps, which push hours into the wrong wage type.
- Rounding rules that differ between UKG and SAP, leaving small but persistent differences.
- Retro changes in UKG after a period closed in SAP.
- Connector failures that go unnoticed until payroll, because nobody watches the sync log.
- API limits or credential expiry that stop the sync silently.

## Ai Layer

### Sync reconciliation

**Description:** Compare UKG timecards with S/4HANA postings and list differences by employee and pay code, with the most likely cause such as rounding, a retro edit or a missing mapping.

### Error log explainer

**Description:** Read the connector's error log and relevant records to explain each failure in plain language and draft a fix for the integration owner to approve.

### Labor cost questions

**Description:** Let finance ask where labor cost differs from plan by cost center and see the underlying time records.

## Alternatives

- SAP SuccessFactors Time Tracking if you want a single first-party time system and can retire UKG.
- UKG's own integration options or an integration platform such as SAP Integration Suite for more governance than a no-code tool.
- A scheduled flat file export and import for a small site where volumes are low.

## Faq

### Is UKG Sync for SAP certified by SAP or UKG?

**Answer:** The record describes it as a third-party API connector from CloudApper. It does not state SAP or UKG certification, so ask the vendor for supported versions and references before relying on it for payroll-critical data.

### What data does it sync?

**Answer:** Time and labor data such as hours, pay codes and absences, plus employee and organisation data for matching. The exact objects and fields depend on configuration, so confirm them against your payroll and costing needs.

### Why do hours differ between UKG and SAP?

**Answer:** Common causes are rounding rules, retro edits after period close, unmapped pay codes and employee ID mismatches. A reconciliation report by employee and day will usually point to the cause quickly.

### Where does a private AI layer help?

**Answer:** On reconciliation and error explanation across UKG and SAP, run on your own infrastructure because the data is personal. It reads and explains, and a payroll owner approves any correction.

## Source

https://ukg.cloudapper.ai/ukg-integration/how-to-integrate-sap-successfactors-with-ukg-for-unified-hr-and-time-data/

## Search terms

ukg kronos sap integration, ukg sync for sap, kronos s4hana time data, ukg successfactors integration, cloudapper ukg sap, labor cost reconciliation sap ukg

---
Talk to an engineer: https://netray.co/contact?intent=erp_ai | Machine catalog: https://netray.co/agent/catalog.json