SAP FI/CO · Functional design · Testing & controls

CHATREE KENGPIPAT

Turning finance requirements into controlled, testable ERP delivery.

SAP Functional Consultant at Accenture, focused on S/4HANA FI-Tax. Four production cloud ERP go-lives sit behind that role — from requirements and configuration through UAT, cutover and adoption. I connect each business rule to its posting, table, reconciliation control and test evidence.

★ Current · SAP FI/CO · Tax ◧ Delivered · 4 ERP go-lives ⚡ Proven · UAT to hypercare
Chatree Kengpipat · SAP Functional Consultant (FI/CO)
Chatree Kengpipat
SAP Functional Consultant (FI/CO) · Accenture
CK
Start with the decision you need to make

From requirement to reconciled posting.

This portfolio is organised as a consultant evidence trail: the business problem, the functional decision, the system behaviour, the test proof and the measured outcome. Choose a lens and the site will take you to the most relevant evidence first.

Fast profile read · 5 minutes

See the career logic and verified delivery record.

Start with outcomes, then follow the transition from engineering discipline to ERP ownership and SAP FI/CO specialization.

01ProofFour production ERP launches and their reconciled metrics.
02Career arcEngineering → implementation → enterprise SAP.
03Role fitScope, methods, and a print-ready résumé.
View proofOpen résumé
4 go-livesProduction cloud ERP · 2023–2026
200 usersThree operating branches
5 modulesFinance · P2P · AR · billing · CRM
FI-TaxCurrent S/4HANA functional focus
Delivered Tested Illustrative

My tech journey

Mechanical Engineering → Cloud ERP Implementation → SAP Functional (FI/CO) Consulting
01 · SAP FI Tax

SAP FI Tax, upstream to downstream

Accenture · S/4HANA FI-Tax · how each WRICEF hands off to the next

Tax is a chain, not a single program. Set-up decides what an invoice posts; postings feed the daily and month-end adjustment programs; one reporting engine turns them into certificates, attachments and e-filing files; the returns are due on fixed dates. Play a thread to follow one document end to end, or click any box to see what feeds it, what it feeds — and what breaks if it fails. Object codes are neutral (anonymized), the same as in the FI-Tax Knowledge Lab.

  1. Set up — tax procedure, tax codes & accounts · extended WHT types & codes · business partner WHT data · segment derivation · three local currencies.
  2. Post — vendor invoice (FB60 / MIRO) · payment with WHT (F110) · customer billing & receipt · joint-venture cash calls.
  3. Adjust — WHT FX adjustment (10:00 batch) · deferred input / output VAT transfers · VAT36 self-assessment after month-end.
  4. Report — one WHT reporting engine · VAT report with net VAT clearing · Oman VAT report · Myanmar WHT report.
  5. Output — 50 Tawi & PND54 form · PND3 / 53 / 54 attachment · RD e-filing text files · PND54 ↔ VAT36 reconciliation · PP36 report · PP30 file.
  6. File & hand over — PND3 / 53 / 54 and PP36 by the 7th (e-filing 15th) · PP30 by the 15th (e-filing 23rd) · certificates to payees.
01 · SAP FI Tax

Try the mechanics

Four simulators · standard SAP behaviour · sample numbers

Change a number, press play, and watch the documents, the postings and the ledger move. Nothing here is a client system — standard SAP S/4HANA behaviour and Thai tax rules with sample amounts.

Animated document flow for four processes — Procure-to-Pay, Order-to-Cash, Thai withholding tax at payment, and a foreign service with PND54 and VAT self-assessment. Each step shows the T-code, the tables written and the debit/credit posting, while a T-account ledger fills up and clears.

Thai withholding tax and VAT on a payment: pick who you pay and for what, and see the WHT rate, the form (PND3 / PND53 / PND54), the 50 Tawi certificate, the cash that leaves the bank and the posting — including gross-up when the payer bears the tax.

Book a USD invoice at one rate, settle it at another and watch the realized exchange gain or loss appear — or let the market wander for 30 days and see it tick.

One payment, several profit centers: document splitting creates one WHT line per profit center, and a tax report needs one row per line with the base prorated so the totals still tie to what was filed.

02 · Cloud ERP

Impact at a glance

From my live XeerSoft Cloud ERP projects · tap a metric to open the project
86%
Stockout Reduction

22% → 3% · Inventory P2P →

97%
Faster Pricing Decision

480 min → 15 min · Pricing/AR →

82%
Write-off Reduced

฿45K → ฿8K /yr · Inventory P2P →

0
Critical Post-Launch Bugs

CRM Go-Live · 50+ Members →

Implementation Explorer · interactive
Pick a project — walk the process, see the result
Portfolio
Power BI dashboard summarising the ERP projects
Executive portfolio dashboard · all 4 ERP projects
Source: real Power BI reports from 4 XeerSoft ERP projects at Learn Balance Group, Jan 2023 – Jun 2026 · 47 staff trained · 219 tickets resolved. Every KPI reconciles to the project pages.
02 · Cloud ERP

Selected Cloud ERP projects

4 End-to-End Deliveries · XeerSoft Cloud ERP · 2023 – Present
01
Jan 2023 – Go-Live June 2023

Inventory & Procurement Management

P2P Implementation · Sole Consultant

Configured material masters, vendor data, and 2-level approval workflow on XeerSoft. Applied Poisson Distribution and Modified EOQ statistical models to solve chronic XS/XXL uniform stockouts and textbook write-off.

XeerSoft P2P MRP Master Data Statistical Modelling
▲ 86%
Stockout
100%
Unauth PO Cut
▲ 82%
Write-off
02
Jun 2023 – Go-Live June 2024

Strategic Pricing & AR Configuration

BA + Implementation · 12-Month Discovery

Attended 48 weekly Executive Sessions over 12 months. Extracted multi-tier pricing logic from live family advisory sessions and translated into structured FD with 3 core pricing variables and AR billing structure.

XeerSoft Pricing AR / Dunning FD Authoring Stakeholder Workshop
▲ 97%
Decision Time
▲ 71%
Days Overdue
▲ 23%
AR Collection
03
Jun 2024 – Go-Live January 2025

CRM Star Reward Loyalty System

BA + UAT Lead · Defect Management

Detected critical bulk-assignment defect on first test cycle. Led 5 iterative UAT build cycles, managing 60 defects with structured reproduction steps to zero critical post-launch incidents across 50+ members.

XeerSoft CRM UAT Lead Defect Lifecycle Custom Logic
60 → 0
Critical Defects
5
UAT Cycles
50+
Members Live
04
Jan 2025 – Go-Live June 2026

STEM Portfolio Financial Tracking

BA + Implementation · Live (June 2026)

Designed AR billing for Newton's STEM programme across seven subjects. Configured collection tracking, cost allocation, and per-subject P&L. Go-Live June 2026 — collection recovered to 95.0% via post-go-live dunning.

XeerSoft FI AR Billing Cost Allocation P&L Reporting
฿2.18M
Total Revenue
95.0%
Collection Rate
49.6%
Overall Margin
Proposed SAP design · Portfolio exercise

The same 4 systems, re-designed in SAP

A tech-consultant exercise: each delivered XeerSoft system above, re-scoped as a proposed SAP design — business flow, technical/configuration design, a sub-unit test plan (10-step manual criteria), a development pipeline, team shape, and effort estimate.

SAP MM SD FI-AR CO-PA Test Mgmt
View SAP design →
02 · Cloud ERP

Delivered, proven

What I've actually shipped on XeerSoft Cloud ERP — each capability backed by a real result and the live project behind it
Procure-to-Pay & inventory control≈ SAP MM
68→87% vendor on-time30→0% unauthorised POs
Inventory & Procurement
Pricing & multi-tier condition logic≈ SAP SD pricing
480→15 min pricing decision
Strategic Pricing & AR
AR, credit control & dunning≈ SAP FI-AR
78→96% AR collection42→12 days overdue
Strategic Pricing & AR
Billing, revenue & profitability≈ SAP SD billing + CO-PA
฿2.18M billed49.6% gross margin7 segments
STEM Billing & Profitability
UAT & defect management≈ SAP Test Mgmt
60 defects5 cyclesblockers 11→0
CRM Star Reward Loyalty
Cutover & go-live discipline≈ SAP Activate · Deploy
4 end-to-end go-lives2023–2026
All four systems

Every go-live carried the full analyst trail behind it — FD, Use Case & User Story — plus GL account determination and master-data setup. This is real delivery on XeerSoft Cloud ERP; the ≈ SAP tags mark where each capability maps, not SAP project experience.

Where I work

On the floor at Newton Sixth Form

Newton Sixth Form Boarding School (under Learn Balance Group) is where these XeerSoft ERP projects came to life: a 200-staff, 3-branch organisation running integrated Procurement, Finance, CRM, and HR modules on a single cloud ERP platform.

As the sole on-site Implementation Consultant, I'm the bridge between business operations and the remote XeerSoft development team, gathering requirements in walkthroughs, authoring FDs, configuring modules, leading UAT cycles, and supporting daily users from accounting to admissions.

200+
Daily ERP Users
3
Branches Supported
5
Integrated Modules
3+ yrs
Embedded On-Site
Chatree Kengpipat · ERP Implementation Consultant at Newton Sixth Form
On site
ERP Implementation Consultant · Newton Sixth Form
02 · Cloud ERP

How I work

i.
SDLC Foundation
Waterfall + Iterative

Projects on XeerSoft followed a hybrid model: Waterfall for upfront discovery and FD authoring, then iterative UAT cycles with weekly Dev builds. Each project averaged 5 build cycles before Go-Live.

ii.
Agile Awareness
Sprint-like Cadence

Dev team delivered weekly builds. I tested 1–3 days per build (depending on complexity), met 2× per week for review and defect triage, functionally identical to Agile Sprint cadence with shorter cycles.

iii.
Documentation First
FD → ERD → UAT

Every project starts with a written FD before code. ERDs map data relationships. UAT test cases trace back to FD requirements. No code is built without a signed-off spec.

Defect lifecycle

Example board structure from CRM Loyalty UAT Cycle 2: 60 defects tracked across 5 build cycles to zero critical post-launch incidents.

Open 3
DEF-014
Voucher redeem fails on partial points balance
P2 D
DEF-016
Star log timestamp shows wrong timezone
P3 D
DEF-017
UI: assign button alignment on mobile
P3 D
In Dev 4
DEF-001
Bulk star assignment: only first student processed
P1 D
DEF-009
Campaign trigger fires twice on enrol
P2 D
DEF-011
Star balance not refresh after redemption
P2 D
DEF-013
Audit log missing teacher username
P3 D
Retest 2
DEF-005
Duplicate voucher redemption prevented
P1 C
DEF-008
Points calculation rounding rule
P2 C
Resolved 3
DEF-002
Branch filter for star balance report
P2 ✓
DEF-003
Negative balance prevented after redeem
P1 ✓
DEF-004
Email notification on redemption
P3 ✓
i
Note on methodology framing: XeerSoft project cadence (weekly builds, 2× weekly review meetings, structured defect tracking) is functionally equivalent to Agile Sprint cycles. The exact terminology may differ, but the principles of iterative delivery, continuous feedback, and prioritised backlog management apply throughout.
03 · Background

About me

Mechanical Engineering from Chulalongkorn University (Class Honors, GPAX 3.40) who crossed into ERP consulting, bringing analytical rigour from engineering into business process design and system implementation.

From 2023 to 2026, I delivered four production go-lives at Learn Balance Group on XeerSoft Cloud ERP. As implementation consultant and embedded Business Analyst, I carried requirements through configuration, master data, functional specifications, integration testing, UAT, cutover and hypercare — serving about 200 users across three branches and five integrated modules.

Prior hands-on exposure to SAP in a live automotive manufacturing environment at Mitsubishi Motors Thailand, where I operated SAP as an end-user for procurement and asset management of my FPDU Assist Device engineering project, which won the Best Achievement Award from the full intern cohort.

My current chapter is SAP Functional Consulting (FI/CO) at Accenture, contributing to an energy-sector SAP S/4HANA programme. The public portfolio deliberately limits client detail; it demonstrates my functional method through anonymized testing evidence, standard-SAP references and clearly labelled design exercises. In parallel, I am building depth in BIZBOK / TOGAF capability mapping, value streams and operating-model design, and preparing along the S/4HANA FI/CO certification paths.

An Implementation Consultant is the builder of business systems: turning requirements into working software through configuration, testing, and disciplined cutover.
ERP Implementation Configuration & Master Data FD · Use Case · User Story UAT Leadership Go-Live Cutover SAP Procurement (End-User) SAP S/4HANA FI/CO · Accenture Business Architecture · BIZBOK / TOGAF
Chatree Kengpipat at Newton Sixth Form
Chatree Kengpipat
SAP Functional Consultant (FI/CO) · Accenture
03 · Background

Academic foundation

★ Senior Project · Deep Learning · Python · 2022

Built in my final year, after the Mitsubishi internship in year three, these capstone engineering projects are where the technical discipline behind my consulting took shape. The structured testing, iterative refinement, and acceptance-criteria design I practised here is exactly what powers my UAT and BA work today.

Tools used in these projects
Python MATLAB Fusion 360 NumPy TensorFlow
Chatree Kengpipat at Chulalongkorn University, Faculty of Engineering
Chulalongkorn University · Faculty of Engineering · 2019–2022
Chulalongkorn University · Department of Mechanical Engineering

LiDAR-based Autonomous Driving via Deep Reinforcement Learning

Implemented a complete Deep Deterministic Policy Gradient (DDPG) agent in Python 3 + TensorFlow 2.x, trained over 5,000 episodes in the CARLA Simulator. Two tasks: (1) smooth steering with path-following and (2) adaptive cruise control with 2-second safe-following distance. Designed 7-dim and 4-dim state spaces, custom reward functions with jerk-penalty for smoothness, and modular 5-file codebase.

Python 3 TensorFlow 2.x DDPG CARLA Simulator Actor-Critic LiDAR
0.613 m
Steering Path Error
1.914 s
ACC Time Gap · vs 2.0s target
5,000
Training Episodes per task
→
Chulalongkorn University · Mechanical Engineering Design · in collaboration with MUVMI

MUVMI Regen-Brake Software & Ergonomics Hardware Integration

I led a 5-person team for MUVMI (electric tuk-tuk ride-sharing) across two tracks. On the software / control side I co-owned a new regenerative-brake system: an analog angular-position sensor and speed-banded regen logic, tested live on the vehicle at I'm Park, recovering up to +220% braking energy. On the hardware side I also worked hands-on with the team on the driver-ergonomics build (brake lever, rest pedal, sensor mount) and integrated it into the combined deliverable, though my teammates led that design. As team lead I owned the weekly submission and consolidated all Functional Specs for MUVMI, working directly with the company's CEO and senior engineers, all for a 660 ฿ bill of materials. Voted Top 3 of 16+ Mechanical Engineering Design projects across all groups (cohort 101).

Regen Control Logic EV Energy Recovery Team Lead Vehicle Dynamics Hardware Integration CAD
Top 3
of 16+ ME Design projects · mentor-voted
+220.72%
Regen energy recovered · 10 km/h
Team Lead
5-person · software lead + hands-on hardware
→
03 · Background

Education & certifications

Accenture · SAP Delivery · 2026
SAP Functional Consultant · FI/CO
Cleared the technical interview for the SAP Finance & Controlling (FI/CO) track. Preparing along the S/4HANA FI/CO certification paths (C_TS4FI · C_TS4CO), while applying functional delivery discipline from ERP implementation and manufacturing procurement. View SAP specification design →
SAP
FI/CO
Learn Balance Group · XeerSoft Cloud ERP · 2023 – 2026
ERP Implementation Consultant · 4 End-to-End Go-Lives
Delivered four ERP systems end-to-end for a 3-branch school group — Procurement (P2P), Strategic Pricing & AR, CRM Star Reward Loyalty, and STEM Billing & Profitability (FI-CO). As embedded Business Analyst and sole implementation consultant, I owned requirements, FD authoring, configuration, master data, UAT and defect management through to Go-Live and hypercare. View the 4 projects →
4 ERP
Go-Lives
Chulalongkorn University · 2019 – 2022
B.Eng Mechanical Engineering (Honors)
Advanced Statistics & Probability · Multivariable Calculus · Computer Programming (Python) · Computer-Aided System Design · Automation & Control Design · Industrial Robotics · Systematic Design Methodology · Applied Engineering Implementation · Autonomous Systems · AI & Deep Learning Project
Class Honors
GPAX 3.40
Chulalongkorn University · Senior Project · 2021 – 2022
LiDAR-based Autonomous Driving via Deep RL
Developed LiDAR-based autonomous driving with DDPG reinforcement learning across 5,000+ training episodes, combining Python, deep learning, and autonomous-systems simulation. View project details →
Senior
Project
Chulalongkorn University · MUVMI · 2020 – 2021
EV Regen-Brake Software & Hardware Integration
I led a 5-person team for MUVMI (electric tuk-tuk): co-owned the EV regenerative-brake software (analog sensor, speed-banded regen, +220% energy recovered on-vehicle at I'm Park) and worked hands-on with the team on the driver-ergonomics hardware. Voted Top 3 of 16+ ME Design projects by course mentors. View project details →
Software
Design
Project
Mitsubishi Motors Thailand · 2020
Best Achievement Award · MMTh Talent Engineering
SAP end-user in live automotive manufacturing, where I managed the full procurement workflow (MSR → e-AR → PR → PO) and asset deployment for the FPDU Assist Device engineering project on the PHEV manual line. Selected from full intern cohort. View full project →
★ Best
Achievement
03 · Background

Tools & tech

Documentation

Word · Google Docs
PowerPoint
draw.io
Confluence

Project Tracking

Jira
Defect Log (Excel)
Trello

Data & Reporting

SQL
Excel (Advanced)
Power BI
Python · Pandas · NumPy
MATLAB

ERP Platforms

XeerSoft Cloud ERP · Implementation
SAP S/4HANA · FI/CO Functional Delivery
04 · Contact

Get in touch

Available for SAP FI/CO & ERP implementation roles

Let's build
something
together.

Open to SAP FI/CO and ERP implementation / business-analysis roles in Bangkok. I bring four delivered ERP go-lives, current enterprise SAP functional experience, and an evidence-first approach to design, testing, controls and cutover.