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Hansgrohe case study: A warranty and post-warranty service platform, end to end

How we built iClub Hansgrohe — a field-service mobile app with offline mode, an AI warranty-diagnosis assistant, SAP integration and a training module for installers.

Hansgrohe case study: A warranty and post-warranty service platform, end to end

For Hansgrohe we designed and shipped iClub Hansgrohe — a complete platform for managing warranty and post-warranty service of premium sanitary ware across the Czech Republic. A customer reports an issue from the web or mobile, an algorithm assigns it to the best technician in the area, the tech resolves it in the field — even without signal — and the whole visit flows straight into SAP.

In this post we walk through the seven capabilities that made the system indispensable for Hansgrohe and their customers.

iClub Hansgrohe web form for customers to report a post-warranty service case

The problem: a warranty is a promise, not a marketing line

Hansgrohe manufactures premium sanitary ware and backs it with strong warranties — including a 30-day resolution policy for both warranty and post-warranty service requests. In practice that promise runs into the realities of field work:

  • Customers rarely know the catalogue number of the part, and defect descriptions are vague.
  • The technician has to guess the right spare part up front — a second visit breaks the SLA.
  • A large share of end-users live in areas with poor cellular coverage (guesthouses, holiday homes, new builds).
  • Field data used to be re-typed into SAP by hand — a 3–5 day lag was the norm.

The project goal was unambiguous: get 80% of cases from reported to resolved in under 7 days, and eliminate manual re-typing entirely.

1. Understanding the problem and the customer

Before a single line of code we spent four weeks in the field with technicians. We mapped the real steps of a typical visit — from the phone call and van prep through to signing the work order on the customer's iPad.

That uncovered some unexpected requirements:

  • Technicians need large, high-contrast buttons — gloves, wet hands, bright bathroom lighting.
  • Forms must be one-handed fillable — the other hand is often holding the part.
  • Defect notes need favourite phrases as quick templates — "joint leaking", "perished seal", "stuck cartridge".

2. An algorithm to route each case to the right technician

Field diagnosis is fastest when the technician arrives with a hypothesis. We built a routing algorithm that weighs, before assignment:

  • Geographic proximity and current technician workload,
  • Specialisation (shower systems vs. kitchen mixers vs. AXOR),
  • Historical success rate with similar defect types,
  • Availability of the expected spare part in the technician's van.

As a result, technicians arrive with the right part on the first visit in 78% of cases.

3. A field mobile app with true offline mode

The core of the platform is iClub Hansgrohe — a mobile app the technician uses to drive their entire day: open cases, planned route, price book, spare parts, digital customer signature.

The critical capability is a fully offline mode. When a tech walks into the basement of a guesthouse with no signal, the app keeps working:

  1. A local replica of critical data (price book, parts catalogue, case history) syncs at the start of the day.
  2. Filled-in forms, photos and the customer signature persist locally.
  3. When connectivity returns, a deterministic merge runs against the backend — nothing gets silently overwritten by a colleague's concurrent edit.

A concrete example from production: a technician in a Krkonoše guesthouse replaces a shower hose, the customer signs off on the phone, three photos are taken. All offline. An hour later in the van, the bundle (JSON + binary attachments) uploads to the server and lands in SAP within 90 seconds.

Post-warranty service request form in the iClub Hansgrohe iPad app for field technicians

4. Training module for the broader installer community

A large share of warranty claims aren't product faults — they're installation mistakes. So the platform ships with a training module: videos, interactive guides and quizzes for installers outside the authorised network.

After completing the module and passing a short test, installers earn a certificate. This reduces false claims and gives Hansgrohe a wider database of trained partners.

5. iPad admin module for spare-parts orders

Service coordinators work primarily from an iPad — in the office and on the move. The admin module is designed tablet-first:

  • Quick overview of open cases by status ("New", "Open", "To complete").
  • Bulk spare-part ordering across cases — one click, one invoice.
  • Two-tap quote approvals with a full audit history.
  • News and announcements from HQ (new price books, app updates, reports from iClub events).

iClub Hansgrohe iPad admin module — service case overview and spare-parts management

6. Import / export and SAP integration

Hansgrohe runs a large SAP ERP. Our platform had to integrate seamlessly in both directions:

  • Import: product master data, spare-part catalogues, price books, business partners — daily sync via IDoc.
  • Export: every closed case becomes a service order with labour, material and customer signature metadata.

The upshot: nobody re-types anything. Admin capacity saved: ~40 hours per week across the Czech branch.

7. AI diagnostic tool for warranty decisions

The most interesting module on the project. The AI assistant, on intake of a claim:

  1. Classifies the fault type from the description and photo (10 categories).
  2. Suggests the most probable spare part, linked to the catalogue.
  3. Estimates whether the defect is likely covered by warranty (product age, fault type, customer history).

A human always approves the final call, but the AI gives them a sharp first read. Agreement with the service specialist's decision sits at 93%, and the suggested part cut "return visits" by more than a third.

Results after year one

  • Average resolution time dropped from 11 days to 5.2 days.
  • 30-day SLA compliance: 98.4% (up from 81% before the project).
  • Zero manual re-typing into SAP across the service team.
  • Technician NPS up 22 points — the app made their day easier, not harder.

Looking at something similar for your business?

If you run warranty or post-warranty service, manage a field team, integrate with SAP or IBM Maximo, and want to bring AI into the loop — get in touch. The first consultation is no-commitment and free.