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Project Turnaround

Deconstructing the Structure of Failure to Revive a Project

Deconstructing Project Failure — A Field Guide to Recovery

── Using an SAP Project as the Subject ──

June 2026

Introduction: Facing the Real Cause of the Crisis

0.1 Surface Causes and Structural Causes

When a project goes into crisis, a “cause” is always cited. “Requirements definition was inadequate.” “Scope ballooned.” “The test period was too short.” These are factual, but they are surface-level causes. Unless we face the structural cause that lies one level deeper, the same project will keep going into crisis in the same way.

This book makes one point clearly.

The Core Message of This Book

The root cause of an SAP project’s crisis is neither “requirements complexity” nor “insufficient resources.”

It lies in the failure of project design itself: “consultants who cannot design business processes proceeded without ever producing the deliverables they should have produced, and ran the project without securing personnel who could make decisions.”

And as a structure that conceals this failure,

the human-wave tactic of “adding more people will solve it” takes hold,

and the consulting firm’s business model accelerates that very direction.

0.2 Three Structural Problems That Cause a Crisis

Structural Problem What Is Actually Happening Why It Is Hard to See
① Failure of business design The To-Be business process is never designed, and the users’ “we’d like it to stay the same as now” is turned directly into system requirements The mere fact that “a requirements definition document exists” creates the illusion that design has been completed
② Deliverables cannot actually be produced Design documents, business flows, migration plans, and test plans exist in form, but their quality is low and they cannot serve as the basis for judgment in the next phase A deliverable “existing” and a deliverable being “at a usable level” are two different things. No one within the project evaluates the latter
③ No one who can make decisions No one on either the client side or the vendor side effectively exists who can make decisions on scope changes, design judgments, or Go/No-Go calls Words like “under escalation” and “under coordination” keep hiding the problem

0.3 The Inconvenient Truth That “Consultant Quality Is Poor”

There are two types of roles among the consultants who drive an SAP project. One is the “technician who can configure the SAP system (functional consultant).” The other is the “business consultant who can design business processes and drive transformation.” In many crisis-hit projects, only the former exists on the project.

Functional consultants know “how to configure SAP so that it works.” But they cannot make transformation proposals such as “your company’s business should change this way” or “aligning this process with the SAP standard would lower total cost.” As a result, whatever the customer says they want is simply recorded as a requirement as-is, and the parts SAP cannot handle are merely listed as “Gaps.”

The Difference Between a “Recorder” and a “Designer”

[Symptoms of a functional consultant acting as a “recorder”]

– The deliverable of the Fit & Gap analysis is a “Gap list,” with no “standardization proposal”

– Everything a user says they “want to do” is recorded as an add-on requirement

– No proposal such as “business would be more efficient this way under SAP” ever emerges

– The design document never rises above the level of “meeting minutes of what was heard from users”

– When a problem occurs, the only thing they can say is “let’s bring in more staff”

[What a consultant who is truly a “designer” does]

– Can draw the As-Is and To-Be of the business themselves (not merely have others draw it)

– Can propose, down to “which side should change,” the gap between SAP standard processes and the customer’s business

– Can point out during deliverable review, “this design will cause a problem here”

– Can make the priority call of “what should be cut to make the deadline” when the project is behind schedule

0.4 Human-Wave Tactics Prolong the Crisis

Once a project starts falling behind, the decision is made to “add more people.” But adding people without resolving the root causes — “design quality is low,” “there is no one who can make decisions” — does not improve things. It makes them worse.

Why Adding People Doesn’t Improve Things Explanation
Design-quality problems are not solved by headcount If the design is wrong, increasing the number of people implementing it only increases the “speed at which the wrong thing is mass-produced”
The catch-up cost of new joiners Personnel who join in the middle of a crisis first need several weeks just to grasp the current situation. Meanwhile, the cost of existing members explaining things also rises
The contradiction with the consulting firm’s profit structure Under a contract form where revenue equals unit rate × headcount × duration, the longer the project drags on and the more people are added, the more revenue increases. Clients rarely notice this structural conflict of interest
The diagnosis of “we don’t have enough people” is itself wrong The real problem is often one of: “there is no one who can design,” “there is no one who can decide,” or “what needs to be built is not clear” — not “there aren’t enough people”
✔ Checklist | Diagnosing Your Project’s Crisis Risk

□ In meetings, phrases like “we’ll pull the requirements together,” “we’ll check,” and “we’ll coordinate” keep repeating, but nothing gets decided

□ The consultants cannot draw the To-Be business flow (the business process as it should be) themselves (they only have users draw it and record it)

□ The results of the Fit & Gap analysis end with “there are N Gaps,” with no proposal from the consultants on “what to do about it”

□ Design documents exist, but they are not at a quality level that allows development and testing to proceed from reading them

□ When a scope change or additional requirement arises, “who approves it” has not been decided

□ On the client side, there is effectively no “business owner (final decision-maker)”

□ In response to a report that “there is a problem,” the consultants’ only answer is “let’s add more people”

□ The phrase “the users are slow to confirm requirements” often comes up as the reason for project delays

▶ If three or more apply, a consultant-quality problem is inherent in the project. If five or more apply, judge it as a signal that a crisis is already in progress.

Chapter 1: The Failure of Business Design — Consultants Who Don’t Know the “Business”

“People who can configure SAP” and “people who can design business processes” are a different breed. When the two are conflated, a project begins to collapse — quietly, but surely.

1.1 What Is Business Design?

Business design is the activity of deciding, as a company, “which business processes to execute, in what order, by whom, and by what judgment criteria.” In an SAP project, this means designing, as an act of management will, “how the business will change after SAP is introduced (the To-Be business flow).” This is not a technology issue — it is a management and business issue.

Yet on the ground in SAP projects, this “business design” is often dropped. Consultants conduct “interviews on the current business” and organize “what SAP can and cannot do (Gaps),” but in many cases they never go so far as to propose “how the business should change.” The result is the least efficient kind of implementation: putting the current business, unchanged, onto SAP.

The Chain Reaction Produced by Implementation “Without Business Design”

No business design

Gaps are judged against the standard of “a Fit means being able to do business exactly as it is now”

Most SAP standard functions are judged “not a Fit (a Gap)”

An attempt is made to address every Gap with an add-on or a Config

Development effort explodes. Test volume explodes too.

The diagnosis “we need additional staff” is handed down

People increase, cost increases, the schedule extends, and quality drops

Crisis is confirmed

── This chain cannot be stopped by anything other than redoing the business design

1.2 Concrete Examples of Business Design Failure in SAP Projects

Scene What Happens Without a Designer The Proposal With a Designer
Purchasing approval flow (MM) The current request of “please build a screen identical to the paper approval form” is turned directly into a requirement. The policy becomes developing an individual add-on instead of using SAP’s standard approval workflow Use SAP’s standard purchase-order approval workflow while working with the business side to design “how to organize the approval conditions of the ringi (approval) process.” As a result, no add-on is needed and the business itself can be standardized
Cost-accounting aggregation method (CO) The calculation logic currently done in Excel is turned into a requirement to be reproduced as-is via an SAP add-on First examine “why is this aggregation method necessary” and “can it be replaced by SAP’s standard cost accounting.” In many cases it turns out a configuration change to a standard SAP function can handle it
Timing of shipping instructions (SD/EWM) An attempt is made to reproduce as-is, in SAP, the current system’s practice of “shipping instructions are issued manually at 6 p.m. the previous day” Asking “why 6 p.m. the previous day” yields the answer “because inventory is finalized at 6 p.m.” Propose that using SAP’s real-time inventory management would enable instant shipping instructions and dramatically improve business efficiency
Month-end closing process (FI) The requirement to “output the journal entry list manually as we always have” is designed as-is Design as To-Be what tasks happen on which day of the month-end close, and identify which parts can be automated for journal entries and aggregation. As a result, the close can be designed to go from 12 days to 7 days

1.3 Checking the Quality of the To-Be Business Design

✔ Checklist | Business Design Check for Your Project

□ The To-Be business flow (the process diagram of how things should be) has been drawn by the hand of the consultants (not simply adopted as drawn by users)

□ The To-Be business flow has been designed after being compared against and examined alongside SAP’s standard process (Best Practice)

□ The reason “why customization is needed instead of the SAP standard” is documented in writing for every functional requirement

□ The results of the Fit & Gap analysis include “proposals to change the business side (a plan to conform to the Fit)”

□ Business-department heads have explicitly agreed to the change in business design (current → future)

□ The To-Be business flow is consistently linked with the design documents, test plans, and training plans

□ “Whose job changes and how” as a result of the business transformation is documented at the individual level

▶ If four or more are “No,” business design is not functioning in any real sense. It’s time to consider redoing the Fit & Gap analysis.

Chapter 2: Deliverables That Cannot Be Produced — The Form Exists, but They Don’t Work

For a design document to “exist” and for the design to be “complete” are entirely different things.

2.1 The Full Picture of the “Deliverables That Should Be Produced” in an SAP Project

An SAP project has deliverables that should be produced in each phase. These only have value once they function as “the basis for judgment to begin the next phase,” not merely as “documents that formally check a box.” In many crisis-hit projects, the deliverables are in a state of “existing but unusable.”

Phase Key Deliverables to Produce What Happens If Quality Is Low
Preparation phase (Project Prep) Project plan, scope definition document, stakeholder map, risk management plan Design begins while scope remains ambiguous. Things proceed without it being clear who decides what. The seeds of the crisis are sown here
Business design phase (Business Blueprint) As-Is business flow, To-Be business flow, Fit & Gap analysis, functional specifications (add-ons), master data design document While people say “design is finished,” differences in interpretation repeatedly surface during the implementation phase as “oh, is that what it meant?” — producing the costliest kind of rework: design rework
Realization phase Detailed design documents (per module), integration design document (cross-module linkage), interface design document, data-migration design document and migration programs Contradictions in the design are discovered for the first time in integration testing. Interfaces “don’t connect.” Data migration “doesn’t go through” — discovered right before go-live
Preparation phase (Final Preparation) Test plan, UAT scenarios, cutover plan, training materials, Go/No-Go criteria Testing becomes a box-ticking exercise that must simply be worked through. Cutover becomes a “one-shot live production run.” After go-live, users say “this is unusable”

2.2 The Mechanism by Which Low-Quality Deliverables Accelerate a Crisis

When a deliverable’s quality is low, the problem does not surface immediately. A project manager who receives the report that “the design document is complete” approves the progress and moves on to the next phase. In many cases, the problem is discovered only once the testing process begins.

The Mechanism by Which a Low-Quality Design Document Becomes a “Time Bomb”

[A typical timeline when design document quality is low]

Month 3: The business design phase is complete. The design document review is only a “quick skim.”

The line “we’ll iron out the details later” comes up frequently.

Month 7: Mid-implementation phase. Developers frequently ask, “I don’t understand how to implement this design document.”

Consultants supplement it verbally on a case-by-case basis.

The content of the verbal explanations is never reflected back into the design document.

Month 12: Integration testing begins. Module A and Module B don’t work when connected.

Discussion begins: “What happened to the verbal agreement we made about that point?”

There are no meeting minutes, no evidence.

Month 14: Three months before go-live. Massive rework occurs. Additional staff are brought in, but

time is consumed simply chasing down “which design is actually correct.”

Month 18: Six months behind the original plan. The cause is “the design document was ambiguous,” but

no one says so. It gets summarized instead as “the requirements were complex.”

2.3 The Absence of an Integration Design Document: The Most Overlooked Deliverable

The deliverable that is most important yet most neglected in an SAP project is the “integration design document.” A business flow such as MM (procurement) → PP (production) → SD (sales) → FI (finance) will not run correctly if each module is simply designed independently. The integration design document is the document that designs whether data is correctly handed off at the “boundaries” between modules.

In many projects, the integration design document is postponed as something to “write after completing the design documents for each module.” In reality, however, it is impossible to design each module correctly without an integration design document. The absence of the integration design document is the single biggest cause of the “it doesn’t connect” problem at the integration-testing stage.

✔ Checklist | Deliverables Check for Your Project

□ The results of the Fit & Gap analysis include “business-process-level detail,” such that the rationale for the design is clear just from reading it

□ An integration design document (cross-module linkage and data hand-off specifications) exists as a standalone document

□ For each module’s design document, there is a process where a consultant outside that area reviews it and points out contradictions or gaps

□ The data-migration design document records “source → destination field mapping” for every single item, with exception handling also defined

□ The cutover plan records, for every task, its “task name, owner, required time, start condition, completion condition, and escalation contact”

□ The test plan clearly states “test completion conditions (number of cases, pass rate, number of critical bugs),” and stakeholders have agreed to them

□ Deliverable review criteria (what level allows moving to the next phase) are defined, and the PMO manages them

▶ If four or more are “No,” only formal, box-checking deliverables exist. This is an almost certain predictor of massive rework during the testing process.

Chapter 3: No One Who Can Make Decisions — The Trap Where Everyone Is “Coordinating”

“We’ll check.” “It’s under coordination.” “We’re escalating it.” — When these three phrases line up in the weekly report, the project is not moving.

3.1 The Structure That Creates a Decision-Making Vacuum

An SAP project proceeds through the collaboration of the client (the user company) and the vendor (the SIer/consulting firm). Major decisions — scope changes, add-on additions, go-live postponement — require agreement from both sides. In reality, however, many projects proceed without it being clear “who can actually make this decision.”

Typical Scenes Where Decision-Making Gets Stuck Who Should Decide Why It Doesn’t Get Decided
A new additional requirement has come up (whether to include it in scope) The client’s business owner (department-head level or above) should decide “include / don’t include” and approve the cost impact The client’s frontline wants it included, the client’s IT department says it will increase cost, and the vendor’s PM can only say “what would you like to do?” → the meeting continues without anyone deciding
There are two interpretations of the design — which is correct The vendor’s architect should propose the technically correct one, and the client’s business owner should choose The answer that comes back is “we’ll check with the user,” but the user’s reaction is also “either is fine.” The result is a lingering item left as “we’ll provisionally go with A”
A problem turned up in testing — postpone Go-Live or not Management makes the final call. The PM presents management with the options of “go live with this risk or postpone” along with the cost and impact of each The PM asks management “what should we do?” Management answers “just make sure there’s no problem.” The decision is left hanging
The quality of the consultants’ output is low — fix it with additional cost or not The client’s contract manager and the vendor’s PM should discuss it, negotiating the gap against the contracted specifications with evidence Everyone is afraid that pointing out “the quality is low” will be taken as “criticism,” so no one speaks up. The problem accumulates

3.2 How to Create a “Decision-Maker” on the Client Side

The hardest and most important part of turning around a crisis-hit project is “creating a decision-maker on the client side.” No matter how excellent the consultants are, only the client can decide “how things should be done, as a matter of business.”

The Three Roles Needed on the Client Side

Role ①: Executive Sponsor (senior management)

Role: Gives final sign-off on the overall direction of the project, major changes, and the go-live decision

Required conditions: Receives a weekly project status report and has the authority and follow-through to render a decision within two business days

Role ②: Business Owner (department-head level)

Role: Decides business requirements, business-process changes, and UAT pass/fail judgments

Required conditions: Holds final decision-making authority over “how their department’s business will change after SAP go-live,” and commits at least two days a week of involvement in the project

Role ③: Project Lead (client-side PM)

Role: Handles day-to-day decision-making, scope management, and vendor management

Required conditions: Someone who has both an understanding of the purpose of the SAP implementation and business knowledge, and who can drive execution in practice rather than “leaving everything to the consultants”

3.3 How to Secure a “Responsible Designer” on the Vendor Side

There are also problems on the vendor (consulting firm/SIer) side. “Excellent senior consultants” appear during the proposal phase, but in many cases it is “inexperienced junior consultants” who actually join the project. This “gap between the proposal team and the execution team” is one contributing cause of a crisis.

Vendor Staffing Checks: 5 Questions to Confirm at Contract Time

① “Who is the architect (the person responsible for design) on this project?”

→ Have them provide a specific name along with a track record on similar past projects

② “How many years of experience does the consultant who will conduct the Fit & Gap analysis have in a business similar to ours?”

→ Confirm not whether they “can configure SAP module XX,” but whether they are someone who “can design with an understanding of, say, procurement operations in the food manufacturing industry”

③ “If additional requirements or scope changes occur, which role will conduct the impact analysis, and how will it be reported?”

→ Confirm the clarity of the change-management process and the reporting line

④ “What is the handover setup if a member changes partway through the project?”

→ A project where “knowledge depends on the person” is dangerous. Confirm the policy on documentation

⑤ “If progress falls behind, what kind of recovery measures will your company take?”

→ Be wary if the only answer that comes out is “we’ll add more people.”

Check whether they have a policy for addressing the root cause

✔ Checklist | Decision-Making Check for Your Project

□ On the client side, “the person with final authority to approve scope changes” is documented in writing, and that person is actually committed to the project

□ On the vendor side, “the person with final responsibility for design (the architect)” has been named, and actually participates in design review sessions

□ There is a rule setting the “maximum number of days” from when a decision is needed to when the final judgment is rendered

□ A process functions for quantitatively analyzing the impact (effort, cost, duration) of scope changes and additional requirements

□ The Go/No-Go criteria (what must be satisfied to go live, what would trigger a postponement) are agreed upon in a document

□ There are no more than two issues in the issue log that have sat “under coordination” or “under confirmation,” unmoved, for two weeks or more

□ There is a relationship and mechanism by which, when the client senses a problem with the quality of the consultants’ deliverables, it can formally raise that with the vendor

▶ If four or more are “No,” a decision-making vacuum is obstructing the project’s progress. Resetting the authority matrix and redefining escalation rules is urgent.

Chapter 4: Examining Crisis Cases — What Really Failed

Case A | Reconsidering a Major Manufacturer’s S/4HANA Implementation Crisis

Industry / scale Manufacturing (high-mix, medium-lot production); approx. 1,200 users; 8 domestic and overseas sites
Modules applied MM, PP, SD, FI/CO, PM
Plan vs. actual Planned 24 months → actual 42 months. Over 180% of budget

The Surface Cause (the Commonly Told Explanation)

  • The number of Gaps found during requirements definition far exceeded the original expectation

  • Add-on development increased and effort ballooned

  • Design deficiencies in the PP/FI linkage were discovered at the integration-testing stage

The Real Failure: Problems of Business Design and Deliverable Quality

What Was Really Happening in This Case

Failure ①: The Fit & Gap analysis had become “a record of the current business”

→ The only analysis performed was “there are Gaps in reproducing the current business in SAP”

→ There was no cost comparison whatsoever for “what if the business were changed to align with SAP’s standard processes”

→ The consultants were not people capable of proposing business transformation — they were people who wrote down what they heard

Failure ②: No integration design document existed

→ PP, MM, and FI were each designed by separate teams, on the assumption they would be “integrated later”

→ As a result of each module’s design proceeding without an integration design document,

a fundamental contradiction arose in the linkage design between PP (production orders) and FI (inventory valuation)

→ No one noticed until this was discovered during testing (there was no mechanism in place to catch it)

Failure ③: “Add-ons increased” is a result, not a cause

→ The real cause was the chain of decisions: “there was no business design” → “every Gap was addressed with an add-on or Config”

→ There was no “empowered business owner” on the client side to make the call to align the business with SAP

[The lesson from this case]

The increase in add-ons is not the “cause” of the crisis — it is a “symptom.”

Looking at the symptom and saying “cut the add-ons” is already too late.

Unless you start from the diagnosis that “there was no consultant capable of business design,”

the same thing will happen again.

Case B | Reconsidering a Major Retailer’s SAP EWM Implementation Crisis

Industry / scale Retail (general merchandise chain); approx. 1.5 million SKUs; 12 distribution centers; 340 stores
Modules applied MM, SD, FI, SAP EWM
Plan vs. actual Planned 36 months → actual 53 months. 210% of budget

The Real Failure: Problems of Deliverable Quality and Data Migration Design

What Was Really Happening in This Case

Failure ①: The data-migration design document was nothing more than “paperwork”

→ A migration design document had been produced, but the granularity of “what to migrate and how” was far too coarse

→ It stated that “the product master will be migrated,” but

“which fields, under what conditions, mapped to which SAP codes” was left undefined

→ The consultants treated “producing the migration design document” as the deliverable,

rather than treating “the migration actually succeeding” as the deliverable

Failure ②: Data quality improvement was positioned as “a technical task”

→ The data-quality problem across 1.5 million SKUs was not a technical problem,

but a business problem of “who owns the data” and “which data is correct”

→ The consultants were unable to propose this business design (master data governance)

→ As a result, “fix-it work” kept recurring every time a data-migration problem surfaced

Failure ③: Migration testing was scheduled far too late

→ A “migration rehearsal with production-equivalent data” was scheduled for six months before go-live

→ It should have been conducted regularly starting from early in the project

→ The consultants simply followed a formal phase design in which “migration testing belongs in the Final Preparation phase,” with no risk-management perspective

Cases C/D | Food Manufacturer and Logistics 3PL: A Shared Failure Behind the Crisis

The Contradiction of Industry-Specific Requirements Being Designed by “Consultants Who Don’t Know the Industry”

The real failure in Case C (food manufacturer):

– There was no consultant able to research and design, early in the project, the regulatory requirements specific to the food industry (HACCP, the Food Safety Basic Act, expiration-date management)

– A consultant with little QM module experience took charge of the design, saying “I can do it”

– The problem was discovered at the UAT stage, after three months of silence born of “it’s too late to say anything now”

The real failure in Case D (logistics 3PL):

– Design proceeded using SAP TM+EWM’s “standard implementation approach” without understanding the business characteristics of the 3PL industry (the complexity of rules that differ by shipper)

– The project entered the implementation phase without ever answering the single most critical business-design question: “how do you standardize the individual logic of 47 different shippers?”

[The shared structure]

“A consultant who doesn’t know the industry proceeds with the design while pretending to know it”

→ The problem invariably explodes during the testing process

→ By that point, the cost to fix it is 10 to 30 times what it would have been at the design stage

The essence of the countermeasure is to make “the consultant’s industry experience” the top priority in the selection criteria.

Case E | Pharmaceutical Manufacturer — SAP S/4HANA Implementation and the Overlooked CSV Validation

Industry / scale Pharmaceutical manufacturing (API and formulation); approx. 600 users; 2 domestic plants
Modules applied MM, PP, QM, FI/CO
Plan vs. actual Planned 20 months → actual 31 months. After go-live, a regulatory inspection resulted in a corrective-action citation, triggering additional remediation

What Happened

The pharmaceutical manufacturing industry has a regulatory requirement known as “CSV (Computer System Validation).” Under GMP (Good Manufacturing Practice), any system used in manufacturing has an obligation to “document proof that it conforms to its intended purpose.” Because the SAP QM module is used as the backbone of quality management, it is naturally subject to CSV. However, the consultants leading this project had no experience in the pharmaceutical industry and did not include CSV requirements in the plan.

Three months after go-live, a regulatory inspection cited the fact that CSV documentation (DQ, IQ, OQ, PQ) had not been prepared. The system was live, but the company was left unable to prove that validation had been completed, creating a risk to continued production at the plant in question. A pharmaceutical CSV specialist consultant had to be urgently brought in from outside, requiring an additional six months and roughly ¥200 million in remediation and documentation work.

What Was Really Happening in This Case

Failure ①: Industry-specific regulatory requirements were not investigated in Phase 0 (the preparation phase)

→ CSV requirements are not a technical SAP issue but a precondition for using an ERP system in the pharmaceutical industry

→ This failure could have been prevented by confirming “pharmaceutical industry experience” when vetting the consultants’ backgrounds

→ “Being able to implement SAP” and “being able to implement SAP in pharmaceutical manufacturing” are entirely different capabilities

Failure ②: QM validation design became an afterthought

→ QM must be designed through a reverse-engineered process of “validation plan → design → implementation → testing → documentation,” not by “configuring the system and then checking that it works”

→ Because the consultants did not know this requirement, QM design proceeded on a system-requirements basis, and the validation perspective was dropped

Failure ③: UAT did not double as OQ/PQ (operational qualification / performance qualification) for validation purposes

→ In the pharmaceutical industry, UAT needs to be designed so it can be used as validation evidence

→ That requires the UAT scenarios, test procedures, and result records to follow a prescribed format, but the project’s UAT design did not include that perspective

[Lesson]

“A consultant who doesn’t know an industry’s regulations must not lead a project in that industry.”

This is not a technical problem. It is a hiring and staffing-management problem.

Case F | Auto Parts Manufacturer — SAP PP + MES Integration, a Design That Never Visited the Plant

Industry / scale Auto parts (Tier 1); press, welding, and painting processes; 3 plants; approx. 900 users
Modules applied MM, PP, QM, FI/CO, plus integration with an external MES (Manufacturing Execution System)
Plan vs. actual Planned 22 months → actual 36 months. For six months after go-live at the plant, the floor ran in parallel with the old system

What Happened

The design had SAP PP manage production planning and manufacturing orders, while the shop floor’s MES (Manufacturing Execution System) handled results collection and process control. The interface between SAP and MES (sending production orders, receiving results) was the core of this project, yet almost no on-site plant investigation was carried out during the design phase. Consultants gathered input from the head office’s IT and production-control departments and proceeded with the design without ever confirming what was actually happening on the plant floor.

After go-live, problems surfaced one after another on the floor: “SAP’s production instructions don’t match the actual manufacturing sequence,” “there is a time lag before results entered into MES are reflected in SAP, so QC cannot make real-time judgments,” and “traceability when a defect occurs is inconsistent between SAP and MES.” Facing strong resistance from shift-leader-level users on the floor calling it “a system we can’t use,” the plant was forced into six months of parallel operation with the old MES.

What Was Really Happening in This Case

Failure ①: The designers did not understand the plant’s “actual movements on the floor”

→ At an auto-parts plant, the “production takt time,” measured in seconds and minutes, is the basic unit of the business

→ SAP transactions are designed on the assumption they operate on a “minutes-to-hours” timescale, and could not meet the floor’s need to “check right now”

→ If the consultants had come to the plant, this design mismatch would have been apparent in a single day

Failure ②: The MES-integration interface design ended with nothing more than “confirming technical specifications”

→ The business-flow-level design of “at what timing which data is sent from SAP to MES, and by what judgment criteria MES results are pulled into SAP” remained ambiguous, while only the technical connection specifications were decided

→ The connection “worked,” but it was not designed to “operate correctly as a business process”

Failure ③: Floor users did not participate in UAT

→ UAT was carried out by the head office’s IT and production-control departments; plant shift leaders and operators did not participate

→ A “system that works from a manager’s viewpoint” went live, but it never became “a system the floor workers could use”

[Lesson]

In a manufacturing SAP project, a designer “who never goes to the plant” can only ever produce a “desk-bound design,” no matter how skilled they are.

Visiting the floor repeatedly, and seeing the actual work with your own eyes, is the minimum requirement for business design in manufacturing.

Case G | Construction / Plant Engineering — The Gap Between SAP PS’s WBS Design and Cost Management

Industry / scale Construction / plant engineering (order-based); project sizes from hundreds of millions to billions of yen; approx. 500 users
Modules applied PS (Project System), MM, FI/CO
Plan vs. actual Planned 18 months → actual 26 months. Even after go-live, parallel use of Excel for budget management and cost aggregation never stopped; additional remediation cost equivalent to 40% of the initial budget was incurred in the year after go-live

What Happened

For a construction / plant engineering company, “cost management by project (by order)” is the core of management itself. SAP’s PS (Project System) module is, by design, the most suitable module for this purpose, but in this project the design of the WBS (work breakdown structure) diverged significantly from actual business practice. The consultants designed using SAP PS’s standard WBS design pattern (a hierarchy of phase → task → work type), but the company’s own project management ran on an independent system of “construction area × work type × subcontractor,” and the two never aligned at all.

After go-live, the cost-aggregation results in SAP did not match reality on the ground, producing the fatal situation where “the figures in SAP could not be used for management decisions.” The construction department kept managing costs independently in Excel, and the accounting department was forced into duplicate work to reconcile it against SAP’s figures. Voices from the field kept saying “we have more work now than before SAP was introduced,” and a year after go-live, a major additional remediation effort was decided upon.

What Was Really Happening in This Case

Failure ①: An attempt was made to change only the system’s “management structure” while leaving the business’s “management structure” unchanged

→ WBS design is not the technical task of “using SAP PS’s functions,” but a management decision about “along what axis the company manages its projects”

→ The consultants proposed, “this is the standard design under SAP PS,” but could not make the essential proposal of “how your company’s business structure should change”

Failure ②: The most critical business-design challenge — “unifying the management structure” — was postponed

→ At the company, the project-management structure varied by department and by construction site

→ When introducing SAP PS, it was necessary to first “decide on a WBS structure unified across the whole company,” but instead the decision was made to “just put the current structure into SAP for now”

→ This was a fundamental failure of business design, and responsibility lies with the consultants for not strongly pressing management on “the need for unification”

Failure ③: The linkage between CO’s internal cost design and PS became an afterthought

→ The linkage design between PS (project cost) and CO (management accounting) was the most difficult part and should have been designed first, but it was postponed to the very end under the assumption “we can connect it later”

→ The single biggest purpose of the implementation — “making project cost visible through SAP PS” — went live without ever being designed to completion

[Lesson]

An SAP PS implementation in the construction industry means “WBS design equals management design.”

What’s needed is not a consultant who knows SAP PS’s functions, but a consultant who can transform the construction industry’s cost-management structure.

These are entirely different capabilities, and few people possess both.

At the procurement stage, be sure to confirm a track record of “reforming cost management in the construction industry.”

Cross-Case Analysis: The Shared “Consultant Quality” Problem Across Five Cases

Failure Pattern A Manufacturing B Retail C Food D 3PL E Pharma F Automotive G Construction
No consultant who knew the industry-specific requirements
No business design (To-Be); became a record of the current state
Integration design and linkage design became an afterthought
Deliverable quality was low and could not serve as a basis for the next phase
A decision-maker was effectively absent on the client side
An attempt was made to solve it with additional headcount, leaving the root problem unaddressed
The design never looked at the field (plant, warehouse, or store)
One Unchanging Truth Revealed by Seven Cases

Line up every failed case, and there is almost no technical problem to be found.

What exists is the problem of “someone who didn’t know designed it.”

– Someone who didn’t know the pharmaceutical industry designed a pharmaceutical-industry project

– Someone who didn’t know the plant floor designed a system for the manufacturing floor

– Someone who didn’t know construction-industry cost management designed a project cost system

And “not knowing” does not get exposed at the design stage.

The problem only surfaces during testing, or after go-live.

By that point, the cost to fix it is 10 to 30 times what it would have been at the design stage.

In selecting a consultant, “do they know SAP” is merely a necessary condition.

The sufficient condition is “do they have a track record of transforming operations in your industry.”

Be sure to confirm this question before signing the contract. That alone will prevent half of all crises.

Chapter 5: Practices to Improve Performance Before and After Go-Live

5.1 Before Go-Live: UAT, Cutover, and Change Management

Raising the Quality of UAT (User Acceptance Testing)

UAT is both a check on system quality and the final learning opportunity for users to become able to use SAP. In many projects, UAT becomes nothing more than “the task of working through test cases,” but it only realizes its true value when actual end users carry out the business scenarios (the full flow from order through shipment to invoicing) themselves.

UAT Failure Patterns The Correct Design
Only the IT department and consultants conduct the testing Actual end users (frontline staff) carry out the testing. The reaction “I can’t use this / I don’t understand this” is exactly the kind of problem that must be caught before go-live
Test scenarios cover only the normal-path cases Be sure to include exception cases such as month-end processing, stock shortages, returns, and input errors. In production, the first problems always occur in the exception cases
There is no definition of test completion Agree in advance among stakeholders on numeric criteria such as “pass rate of X% or higher, no more than Y critical bugs”
Test data diverges from production data Test with volumes and data patterns equivalent to production. In particular, reproduce month-end, fiscal year-end, and physical-inventory timing

Designing the Cutover Rehearsal

Principles for Avoiding a “One-Shot Live Run” at Cutover

Principle ①: Conduct at least two rehearsals before the production cutover

1st (dry run): Conducted to find problems. Record time overruns and procedural mistakes.

2nd (timed run): Conducted with the corrected procedure. Confirm it completes within the time limit.

Principle ②: Write the procedure manual at a level where “no thinking is required”

Record everything — task name, owner, start condition, completion condition, required time, and contact point in case of trouble — so that on cutover day, people can act simply by reading the manual.

Principle ③: Agree on Go/No-Go criteria in advance

Define numerically the “conditions to proceed with go-live” and “conditions to postpone,” and have management pre-approve them.

Establish a rule that decisions are not made based on emotion or pressure on the day itself.

Principle ④: Always prepare a rollback plan

Can you revert to the old system if a critical problem occurs after go-live?

If not, explain that risk to management in advance and obtain their approval

5.2 After Go-Live: Improving KPIs and SAP Utilization

Improvements in business performance after SAP go-live are achieved over a period of 6 to 24 months from go-live. Immediately after go-live, effort goes into business proficiency, bug response, and additional training, but it is the companies that pursue continuous improvement activities after getting through the hypercare period that realize the true return on investment.

Business KPI Before SAP Go-Live Immediately After Go-Live (1–3 months) 12 Months After Go-Live Driver of Improvement
Days required for month-end close 12 business days 15 business days (turmoil period) 7 business days Automation of financial journal entries; instant access to consolidated data
Purchase order lead time (procurement) Average 8.2 days Average 9.1 days Average 4.8 days Digitized approval workflow; automated purchase-order proposals (leveraging MRP)
Average days from order to shipment 4.3 days 5.1 days 2.8 days Automated order confirmation; real-time inventory allocation processing
Inventory turnover 5.2 times/year 5.0 times/year 7.8 times/year Improved demand-forecast accuracy (leveraging APO/IBP); revised optimal-inventory standards
Cost to process a supplier invoice Approx. ¥3,200 per invoice Approx. ¥3,800 per invoice Approx. ¥1,100 per invoice Automated 3-way match; support for electronic invoices
Physical-inventory discrepancy rate 2.8% 3.4% (migration impact) 0.6% Real-time inventory management; use of EWM and barcodes
The Biggest Barrier to Post-Go-Live Improvement: “Disbanding on Go-Live Day”

One of the biggest mistakes in an SAP project is the perception that “it’s finished at Go-Live.”

Go-Live is not the end — it is the beginning of business transformation.

Who will drive the improvement of business performance after go-live,

and designing that structure from the project-planning stage onward,

is the single most important organizational design decision for the long-term ROI of SAP.

Maintain a CCoE (Center of Excellence) or a business-transformation team that continues improvement activities after go-live, even once the project itself has ended.

Designing, before go-live, whether “everything can be run by ourselves once the consultants are gone”

is the real condition for success.

✔ Checklist | Post-Go-Live Readiness Check for Your Project

□ A support structure for the hypercare period (1–3 months after go-live) — help desk, resident SIer, key users — has been designed before go-live

□ The KPI indicators to track after go-live, and their target values, have been agreed at the management level

□ A person or organization has been named to drive post-go-live improvement activities, with a plan to continue that activity even after the project ends

□ A roadmap toward advanced post-go-live utilization, such as SAP Fiori and SAP Analytics Cloud, has been planned

□ Timing has been set for an “SAP utilization review” at the 6-month and 12-month marks after go-live

□ There is a plan for transferring the people and knowledge needed to operate and keep improving SAP in-house after the consultants withdraw

▶ If four or more are “No,” you are heading toward the SAP implementation failure pattern of “it went live, but nothing changed.” Start designing the post-go-live structure now.

Closing Chapter: A 30/60/90-Day Roadmap for Turnaround

Phase Period Key Actions Success Criteria
Phase 1: Taking Stock of Reality Day 1–30 – Individual interviews with all stakeholders – Full inventory of scope (reconciled against the requirements documents) – Quality assessment of the consultants’ deliverables – Re-estimate of remaining effort, built up from the bottom – Current-state mapping of the decision-making structure A state in which “the real problem” has been shared with all stakeholders, backed by numbers and facts
Phase 2: A New Foundation Day 31–60 – Re-review of business design (reconsidering the To-Be) – Management decision on scope reduction – Redefinition of the authority matrix (RACI) – Review of the consulting team’s structure (as needed) – Start of a weekly cycle for improving data-migration quality A state in which everyone has agreed on “what must be completed by go-live”
Phase 3: Embedding the New Approach Day 61–90 – UAT quality confirmation and design of additional test scenarios – Execution of the cutover rehearsal – Management agreement on Go/No-Go criteria – Final confirmation of the post-go-live hypercare structure – Formulation of the post-go-live KPI improvement plan A state in which the critical path to go-live is clear and preparation for the Go/No-Go decision is complete
✔ Checklist | Final Check on Turnaround Progress

□ The business design (To-Be business flow) has been finalized with the client’s business owner’s approval

□ An evaluation of the consultants’ deliverable quality has been carried out, and items that fail to meet the quality bar have been identified and improved

□ Scope has been classified into “mandatory for go-live,” “to be implemented later,” and “discontinued,” and management has approved it

□ An integration design document exists, and the cross-module linkage specifications are fully documented

□ The success rate of the data-migration rehearsal has reached 90% or higher in the most recent rehearsal

□ The client-side decision-makers (executive sponsor, business owner) are actually engaged with the project

□ The Go/No-Go criteria are agreed upon in a document, and management is aware of the content

□ The post-go-live structure (hypercare, KPI tracking, business-improvement promotion) has been designed

▶ If six or more are “Yes,” the turnaround is on track. If four or fewer are “Yes,” a fundamental problem still remains. Do not rush to go live.

The One Question to Ask, Last, in a Turnaround

Why did this project not go well?

It was not “because the requirements were complex.”

It was not “because there weren’t enough resources.”

It was not “because the schedule was unreasonable.”

“The people who could design the business did not design the business.”

“What needed to be built was never built at a level that actually worked.”

“The people who should have decided kept running away from deciding.”

One of these three is always at the root of a crisis.

To turn a project around means to face these three questions honestly,

and to change the structure.

It is not about adding more people, remaking the plan, or holding more meetings.

It is about creating “a place where the truth can be spoken,”

seating “people who can decide,”

and entrusting the work to “people who can actually build it.”

From there, a project is reborn.

End

About the author — Konda (Strategy)

Supports DX visioning and core-system renewal decisions, from executive-level business cases to migration planning and project turnaround.

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