Warranty management: the cost pool nobody steers

Warranty, guarantee, goodwill

The three terms get mixed in daily use but mean different things. Statutory warranty is legal liability for defects that existed at handover. A guarantee is a voluntary, contractually promised service by the manufacturer or dealer that goes beyond it. Goodwill is a service granted without legal obligation, for relationship reasons. All three run operationally through the same process and land in the same cost pool — but they can only be steered separately.

What a functioning process delivers

Capture and validation of the claim, the decision between repair, replacement or refund, handling through your own service organisation or partners, recovery from suppliers where a supplied part failed, returns analysis, and feeding the findings back into engineering, production and quality assurance. Plus building and adjusting provisions on the basis of actual failure rates.

The last point is the most valuable and the most frequently omitted. Warranty data is the most honest fault database a manufacturer owns: real failures, real components, real frequencies, undistorted by sales arguments. Book it only as a cost line and you throw away the best foundation for diagnosis, parts planning and design changes.

Why the pool is rarely steered

Because organisationally it falls between chairs. Finance sees a provision, quality sees a defect rate, service sees jobs, procurement sees supplier recovery. Nobody holds the full arithmetic, so nobody steers it. The first sensible step is therefore not a system but an owner.

The link to diagnosis

A substantial share of warranty cost arises not from the defect itself but from the path to it: components swapped that were not faulty, second visits, blanket replacement instead of repair. Better diagnosis reduces that share directly — which makes warranty a service topic and not only an accounting one.