The Module 3 worksheet alone paid for the seat when we found a mis-applied tier on our largest vendor.
Flagship course
API Billing Reconciliation Audit Path
Six modules that turn opaque API invoices into a re-performable evidence trail.
Who this is for
Revenue controllers, billing operations leads, and assurance practitioners who must defend API usage charges to leadership or external reviewers. Familiarity with spreadsheets is assumed; deep coding is not.
Learning outcomes
- Build a usage-to-invoice map tied to price-book versions
- Distinguish timing gaps from overcharges using cutoff calendars
- Sample metering logs with windows that matter near settlement
- Assemble an evidence binder another reviewer can re-perform
- Document residual risk when vendors withhold raw logs
Informational pricing
₩489,000 per learner for the standard Audit Bench seat. Team packages are listed on Pricing. No checkout on this site—request access via Contact.
Instructor
Sora Han spent a decade in revenue assurance for telecom and API marketplace billing before joining API Connect HQ. She designs the worksheets used in Modules 3 and 5.
Curriculum
Modules
01
Invoice anatomy for metered APIs
Line types, minimum commits, overage tiers, and how promotions hide inside otherwise clean totals.
02
Cutoff calendars and delivery lag
Chart when usage is incurred versus when it is billed, including webhook retries that cross month-end.
03
Usage-to-invoice mapping
Build the worksheet that ties request aggregates to each invoice line with price-book version stamps.
04
Sampling metering evidence
Select windows near cutoffs, preserve digests, and record how samples map back to billed quantities.
05
Exception tracing without ticket sprawl
Bucket variances, write concise challenge notes, and know when a commercial credit conversation is required.
06
Binder assembly and handoff
Package indexes, retention notes, and residual-risk statements for the next owner of the desk.
Learner notes on this course
Office hours are practical, though recordings would help teams spread across time zones—something the syllabus still lacks.
FAQ
No. Exports in CSV or spreadsheet form are enough. Optional advanced tips mention SQL filters but are not required to complete the binder.
Yes—anonymize customer names and account IDs first. Instructors will tell you which columns to keep.
We do not teach vendor contract negotiation or legal dispute strategy. If your gap is commercial leverage rather than evidence quality, you will still need counsel or a procurement partner after the binder is complete.
See our Refund Policy for eligibility and timelines before you enroll.
Request a seat for the next cohort
Tell us your billing calendar and whether you need a team package.