JinJin48

SAP Consultant | BTP · S/4HANA · US Global Rollout

June 26, 2026 · 8 min read

SAP QM Inspection Method

The Inspection Method is the master data object in SAP QM that describes how a quality characteristic is to be measured or assessed. Where the Master Inspection Characteristic defines what to inspect, the Inspection Method defines the measurement technique, procedure, or standard that governs the inspection activity. It is an optional but valuable master: when assigned to a characteristic in an Inspection Plan, it embeds the procedural reference directly into the plan, reducing inspector ambiguity and supporting audit traceability.

Part 1: Inspection Method — Core Concepts (All Modules)#

1.1 What Is the Inspection Method?#

The Inspection Method is a reusable reference object that captures the measurement or evaluation technique for a quality activity. In practical terms, it answers the question “with what procedure and according to which standard should this characteristic be checked?” It is plant-assignable, versioned, and referenced across multiple inspection plans and characteristics.

1.2 Method Scope and Applicability Dimensions#

An Inspection Method can be created at two levels of organizational scope, and assigned at two points in the inspection structure. Understanding these dimensions at blueprint time prevents maintenance duplication and scope inconsistencies.

Design principle: Prefer plant-independent methods for company-wide measurement standards (e.g., caliper measurement to JIS B7507). Use plant-specific methods only when the local procedure, equipment, or norm reference genuinely differs by plant.

1.3 Organizational Levels and Data Hierarchy#

Inspection Method is entirely client-level, like every other inspection master in this group. One method — “IM-CMM” (CMM Measurement) — is defined once and referenced by any number of Inspection Characteristics (IC) across every plant and material. The Method never sits underneath an IC organizationally; the relationship runs the other way, an IC references the Method it uses.

Data hierarchy with a concrete example

Client 100
   │
   ├── Inspection Method "IM-CMM"     CMM Measurement
   │      ↑
   │      └── referenced by ── IC "IC-DIA"   Diameter (quant.)
   │
   ├── Inspection Method "IM-VIS"     Visual Inspection
   │      ↑
   │      └── referenced by ── IC "IC-SURF"  Surface (qual.)
   │
   ├── Sampling Procedure "SP-05"          AQL 1.0 · Level II
   ├── Dynamic Mod. Rule "DMR-Q10"         Skip after 10 pass
   └── Certificate Profile "CP-4711"       Outbound QM cert

Design principle: Define Inspection Methods as generic, reusable procedures (“CMM Measurement,” “Visual Inspection”) rather than naming them after a specific characteristic or product. A single well-named Method should serve many ICs across the client, avoiding a proliferation of near-duplicate methods that differ only in name.

1.4 Integration with Other Master Data Objects#

The Inspection Method sits between the measurement standard world and the inspection planning world. It does not drive process execution directly — it is consumed by the objects that do.

Part 2: QM-Specific Field Details#

2.0 Scope of QM Ownership#

Legend: ◎ = Owner / Critical, ○ = Direct involvement

2.1 General Data#

General Data is the identification and control section of the Inspection Method. It establishes the method key, its organizational scope, and its lifecycle status — the three attributes that determine whether and where the method can be used in inspection plans.

2.2 Method Description#

The Method Description section provides the procedural narrative that guides the inspector. The long text field is the primary vehicle for embedding step-by-step instructions, safety notes, and measurement sequencing directly into the inspection master data.

Prerequisite: Long text is optional at the system level, but required by most quality management standards (ISO 9001, IATF 16949) for documented inspection procedures. Treat it as mandatory for any characteristic that carries a regulatory or customer audit obligation.

2.3 Norm and Equipment References#

The Norm and Equipment References section anchors the inspection method to external quality standards and to the physical measurement tools required for its execution. These references are critical for audit traceability — they allow an auditor to trace from an inspection result back to the measurement standard and the calibrated instrument used.

What to Read Next#

L1) Big Picture

L2-A) Master Data

L2-B) Transaction