What do you do when your S/4HANA go-live isn't stable, month-end won't close, and you've lost confidence in your partner?
July 2026
A global industrial group inherited an S/4HANA Cloud implementation that was declared technically complete, but the business couldn't rely on it, financial data didn't reconcile, month-end close didn't work, and the open-issue backlog kept confidence low.
Finance doesn't care about technical debt. It cares about closing the month, trusting the numbers, and knowing the system won't surprise anyone tomorrow. S5 stepped in as recovery partner, stabilised operations in under 20 weeks, and moved the customer into a long-term AMS partnership.
The need
The project was declared complete. The business knew it wasn't. Financial data didn't reconcile, month-end close didn't work, and the open-issue backlog stayed long enough to erode trust in the platform.
Changing partner mid-crisis can feel like adding risk. The customer needed the opposite: an honest read on what was actually wrong, senior people accountable by name, and a delivery model that stabilised operations instead of layering new complexity on top of old.
Our solution
S5 treated the takeover as a business recovery, not a ticket-clearing exercise. The work followed the 5S delivery model, with every decision tied to restoring reliable finance and operations, then protecting that stability over time.
1. Scan, the real solution state, not the sales pitch
We started with an independent reading of the live environment: open issues, process gaps, documentation status, and the technical debt behind the symptoms. That fact base separated urgent business blockers from noise and gave the recovery a credible sequence. The customer could see what had to be fixed first, what could wait, and why.
2. Simplify, Clean Core as the baseline
Clean Core became the rule for every recovery decision. S5 prioritised the backlog, removed avoidable complexity, and protected the system from fixes that would solve today's issue by creating tomorrow's maintenance problem. The goal was not more change, it was a solution the business could trust and keep upgradeable.
3. Stack, the right components in the right places
S5 treated SAP as a composable foundation, with the core, integration, data, insight, and user experience each doing the job they are best suited to do. Components were assessed by business fit, not by vendor preference or the convenience of the delivery team.
4. Ship, controlled delivery instead of firefighting
A Change Control Board stopped ad-hoc changes from destabilising an already fragile system. Work moved through focused sprints, with the customer setting priorities and senior S5 specialists delivering against the agreed sequence. Every change went through the same route: decide, deliver, validate, release. Firefighting stopped being the default.
5. Steward, long-term partnership, not project handover
The takeover did not end when the most urgent issues were resolved. S5 moved the solution into a long-term AMS partnership focused on process quality, automation, operational reliability, and continuous improvement. Specialist capability was added through S5 Labs using an AI-shoring model, named senior expertise matched to the problem, in the same European time zone, with no anonymous resource pool.
Technologies:
Results
- Month-end close working reliably
Finance moved back into a working operating model, with the close process and underlying controls able to support normal business routines.
- The business trusts SAP again
Reliable processes, clearer ownership, and a system that behaves predictably rebuilt confidence in the platform and the numbers it supports.
- Controlled change instead of firefighting
Governance and sprint-based prioritisation replaced ad-hoc fixes with a stable path for resolving issues without adding new instability.
- Long-term AMS partnership
The recovery became an ongoing relationship centred on business value, process quality, operational reliability, and continuous improvement.
