Kronos Workforce Central Data Archival — Retire WFC, Keep the Evidence

Kronos workforce central data archival is the practice of moving historical WFC data — closed pay-period timecards, signed timecard images, archived punches, terminated employee records, closed FMLA cases, expired accrual balances — out of the active WFC tenant into a long-term queryable archive, so the WFC tenant can be retired without losing the FLSA, state wage law and union audit evidence trail. With Kronos Private Cloud EOL December 2025 and on-prem WFC EOL March 2027, archival is now mandatory for every customer carrying a multi-year retention obligation. Syntra ETL's archive preserves Parquet on object storage with a SQL-queryable front-end so historical lookups work without an active WFC subscription.

Two reasons. First, Fusion Time & Labor is sized for forward-looking operational data, not 7+ years of granular punch history — loading hundreds of millions of historical punches into Fusion inflates the operational schema and slows Time Card queries for current pay periods. Second, much of the historical data is required for retention compliance but is rarely accessed: FLSA audit happens once every 3-5 years on average, state wage class actions are episodic. Kronos workforce central data archival routes operational data to Fusion and historical-only data to a low-cost queryable archive (typically 80–95% storage cost reduction versus active Fusion or active WFC), with full hash-signed audit traceability preserved.

Operational-tail data — current pay period plus 1–2 prior pay periods of punches, open FMLA cases, active accrual balances, current schedules — belongs in Fusion. Historical-only data belongs in the archive: closed pay-period timecards older than 2 cycles, terminated employee punch history, closed FMLA cases past the 3-year FMLA retention window's active reference period, expired accrual balances for separated employees, archived schedule history. Syntra ETL's kronos workforce central data archival framework makes this routing explicit per data domain, with policy-driven cutoffs (e.g., 'punches older than 90 days route to archive').

Retention depends on regulation and jurisdiction. FLSA: 3 years for payroll records, 2 years for supporting timecards (DOL Wage & Hour standard). State wage law: 4 years in California (Labor Code §1174), 6 years in New York (Wage Theft Prevention Act), 7 years in several other states. FMLA: 3 years for leave records (29 CFR 825.500). IRS payroll: 4 years from tax due/paid (IRC §6501). Union contracts often require 5+ year retention for grievance support. Syntra ETL's archive applies retention policy per data domain per jurisdiction, with automatic tier-out and (where contract allows) tier-deletion at retention expiry — fully audit-logged.

Yes — that is the entire point. Once WFC is retired (post Dec 2025 cloud EOL or post Mar 2027 on-prem EOL), the active tenant disappears but historical lookups still need to happen for FLSA audit response, state wage class action defense, FMLA case re-opens, union grievance support and ex-employee inquiries. The Syntra ETL kronos workforce central data archival product exposes a SQL query layer (Athena/Trino/BigQuery external tables) over the Parquet archive plus a lightweight web UI for finance, HR and audit users. Pre-built query templates cover the standard request types: FLSA timecard pull, accrual liability snapshot, FMLA case detail, union grievance evidence.

WFC tenant licensing (per-EE per-month) continues for as long as the tenant is live, regardless of whether the data is being actively used. For multi-thousand-employee deployments carrying 7+ years of historical data, a meaningful slice of the WFC bill is paying to keep retired-employee history accessible. Archive the data, retire the tenant, and the WFC licensing line item goes to zero. Archive storage on object storage with tiered hot/warm/cold is typically 80–95% cheaper than equivalent WFC tenant storage. For a 10,000-EE deployment, the post-archival annual cost is often 1/15th to 1/30th of the pre-archival WFC subscription.

Yes. Every record entering the archive carries: source-system identifier (WFC tenant + table + record-id), extraction timestamp (UTC), extraction run-id (UUID), hash signature (SHA-256 over the row), and source-data effective dates. Manifest signing covers the full extraction batch. The archive itself is immutable (object storage with versioning + object lock where regulation requires WORM), and every read is logged with user-id + timestamp + query-id. This satisfies SOX, FLSA, state wage law, FMLA and union audit evidence requirements — and the read-access log is itself an audit artifact for who-saw-what reviews.

A typical archive go-live runs 6–9 weeks: 1 week for credential and connectivity setup, 1–2 weeks for discovery and scope, 2–3 weeks for full-history extraction (multi-year, multi-TB), 1 week for query layer deployment and pre-built templates, 1 week for user acceptance and retention policy validation. For customers facing the December 2025 Kronos Private Cloud EOL, we typically reverse-engineer the project plan from the EOL date to ensure the archive is live and validated before the WFC tenant is taken read-only — leaving a 4–6 week buffer for cutover edge cases.