Team collaborating around a laptop in a bright office

Flagship course

Ledger Sync Audit Foundations

Financial auditing guidance for app-to-ledger data sync validation—from export contracts to residual risk notes.

8 modules · ~4–5 weeks at a steady pace · Informational price ₩289,000 (Ledger Desk)

What you will practice

You will design export contracts, run stratified samples, age exceptions, and assemble working papers that explain why the ledger and the app still disagree—or finally agree.

  • Define testable sync assertions for revenue, cash, and inventory feeds
  • Detect cutoff, timezone, and batch-lag distortions
  • Produce exception boards reviewers can navigate
  • Write residual risk language that is specific, not decorative
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Learning outcomes

  1. Draft an export contract with control totals and hash checks
  2. Build three sampling strata with documented rationale
  3. Classify exceptions by owner, age, and materiality band
  4. Prepare a close-ready rematch narrative for one flow

Limitation: this course does not certify you as a licensed auditor in Korea or elsewhere, and it does not replace engagement-specific professional standards.

Modules

  1. Sync assertions worth testing

    Separate marketing claims from auditable statements about completeness, accuracy, and cutoff.

  2. Export contracts & hygiene

    Column dictionaries, null policies, currency scales, and how to refuse unclean files politely.

  3. Control totals that survive debate

    Hash rows, amount bands, and count reconciliations that hold up when systems disagree.

  4. Cutoffs, batches, and weekend windows

    Map posting calendars against operational “complete” events—especially across Korean public holidays.

  5. Strata & sample design lab

    High-value, high-velocity, and high-risk slices with transparent selection notes.

  6. Exception aging boards

    Owners, SLAs, and when to escalate versus park as residual risk.

  7. Working papers for reviewers

    Structure evidence packs for internal audit and external inquiry without oversharing PII.

  8. Monthly cadence & handoff

    Install a light validation rhythm so rematch does not restart from folklore each close.

Instructor

Portrait of instructor Ji-yoon Han

Ji-yoon Han

Former internal audit lead for a multi-entity Korean retailer, Ji-yoon now designs sync validation curricula. She focuses on evidence clarity over tooling fads and still runs office hours on cutoff disputes.

Informational pricing

Individual access via Ledger Desk at ₩289,000. Team and cohort options appear on the pricing page. No payment is processed on this website.

Reviews from this course

“Module 4’s holiday cutoff map was the piece we had been hand-waving.”
Min-seo Park · Seoul
“Wanted deeper ERP connector labs; still kept the exception board.”
Client in logistics finance

FAQ

Do I need an accounting degree?

No. You should be comfortable reading a trial balance and exporting CSVs from at least one operational system.

Is software included?

No vendor licenses are bundled. Exercises use spreadsheets and sample files we provide. Bring your own BI tool if you prefer.

What is a real limitation of this course?

We do not teach full statutory audit methodology, tax provision, or how to configure specific ERP connectors. If your main problem is a broken integration build, you still need engineering time—this course teaches how to evidence and prioritize the finance side of that work.

Can teams share one seat?

Seats are per practitioner. Audit Bench covers up to five named seats; ask us for larger groups.