JinJin48

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

June 27, 2026 · 10 min read

SAP EWM Storage Section

The Storage Section is the intermediate organizational layer inside a Storage Type that groups Storage Bins into putaway zones. By assigning each bin to a section, the warehouse system can steer incoming stock to a specific area — for example, routing fast-moving goods to the front of an aisle and slow movers to the rear — without changing the physical layout. This article covers the Storage Section’s role in the warehouse hierarchy, its relationship to Putaway Strategy, and all SPRO configuration fields that EWM consultants define during blueprint and system setup.

Part 1: Storage Section — Core Concepts (All Modules)#

1.1 What Is the Storage Section?#

A Storage Section is a named subdivision of a Storage Type that collects a logical group of Storage Bins sharing the same putaway behavior. While the Storage Type defines the physical nature of a storage area (rack, floor, high-bay, etc.), the Storage Section defines the functional zone within that type where a product should be placed. Every Storage Bin in EWM belongs to exactly one Storage Section.

1.2 Section Types and Usage Patterns#

SAP EWM does not define fixed “section types” in the traditional sense — the Storage Section is a free-form Customizing key. However, warehouse design best practice yields a consistent set of zone patterns. Choosing the wrong zoning strategy at blueprint increases rework during bin master data migration.

Design principle: Define sections during the physical warehouse layout workshop. Each section should map to a contiguous physical zone that shares the same Putaway Strategy — splitting a contiguous zone across multiple sections adds complexity without benefit.

1.3 Organizational Levels and Data Hierarchy#

The Storage Section occupies the third level of the EWM warehouse structure. Every Customizing and master data object in EWM is scoped within a Warehouse Number, and the Storage Section inherits that scope through its parent Storage Type.

Warehouse Number (e.g., WH01)
   │
   └── Storage Type (e.g., 0010 — High-Bay Rack)            [/SCWM/TSTYPE]
          │
          └── Storage Section (e.g., A01 — Fast Mover)      [/SCWM/TSECTION]
                 │
                 └── Storage Bin (e.g., A01-01-001)          [/SCWM/LS]
                        │
                        └── Fixed Storage Bin               [/SCWM/TBINMAT]
                               (Warehouse Product assigned
                                to a specific bin)

Key design decision: The number and granularity of Storage Sections within a Storage Type directly controls putaway routing flexibility. Fewer sections mean simpler configuration; more sections allow finer-grained putaway logic. In projects with more than four sections per Storage Type, validate that each section genuinely drives a distinct putaway decision — otherwise collapse sections to reduce maintenance overhead.

1.4 Integration with Other Master Data Objects#

The Storage Section is a passive configuration object — it does not carry transactional data itself, but it acts as the routing key that Putaway Strategy and Picking Strategy algorithms evaluate when assigning a bin.

Part 2: EWM-Specific Field Details#

2.0 Scope of EWM Ownership#

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

2.1 Basic Definition#

The Basic Definition data forms the identity of the Storage Section. These fields are entered in SPRO under Extended Warehouse Management → Master Data → Define Storage Sections, and must be established before any Storage Bins can be created in the Storage Type.

2.2 Sorting and Sequence#

The Sorting and Sequence configuration determines the order in which the bin determination algorithm visits Storage Sections when searching for a suitable bin during putaway or picking. Correct sequence design is critical to achieving the intended throughput and stock placement patterns.

Prerequisite: The Putaway Strategy and Picking Strategy must be defined (EWM-A03-03, EWM-A03-04) before the sorting sequence can be validated end-to-end. Run a bin determination simulation (/SCWM/BIN_DET) in the test system to confirm the sequence produces the intended behavior before cutover.

2.3 Bin Assignment#

Storage Bins are assigned to a Storage Section at the time of bin master data creation. The assignment is a mandatory attribute of the Storage Bin — every bin belongs to exactly one section, and that assignment controls all putaway and picking routing for that bin.

Prerequisite: The Storage Section must exist in SPRO before bins can be assigned to it. In projects using the automated bin layout generation tool (SPRO → Generate Storage Bins), the section assignment is defined in the generation template and applied to all generated bins in one step.

What to Read Next#

L1) Big Picture

L2-A) Master Data

L2-B) Transaction