SAP Warehouse Management Guide

Get to know the SAP Warehouse Management (WM) module and the mobile apps included in the RFgen MobileEdge™ for SAP solution. RFgen®’s WM mobile app suite optimizes warehouse management for inventory control, goods tracking, and process automation.

What is SAP Warehouse Management?

SAP Warehouse Management (WM) is a module for managing warehouse operations using the SAP ERP system. It is designed to facilitate and automate various warehouse processes of low to moderate complexity, including inventory management, movement of goods, and material flow in a warehouse.

Understanding SAP Warehouse Management

Definition and Core Functions

The SAP Warehouse Management module provides extensive control over warehouse operations, enabling resource optimization for labor and equipment. Its core functions include:

  • Inventory Management: Record-keeping for tracking of quantities and locations.
  • Warehouse Structure: Define warehouse structure in the system to optimize space utilization, including storage areas, bins, and shelves.
  • Goods Movements: Manage goods movements within the warehouse, such as goods receipts, goods issues, and stock transfers.
  • Picking and Packing: Support for efficient picking and packing processes.
  • Cross-Docking: Facilitation of cross-docking operations, where incoming goods are directly transferred to outbound shipping docks.

Some organizations may wish to customize SAP WM processes to match specific operational needs.

Advanced Features and Functions

In addition to basic capabilities, SAP WM provides a number of advanced features to further optimize warehouse management. Advanced functions include:

  • Material Flow Systems: Integration with automated material flow systems, allowing for seamless coordination of automated conveyor systems, forklifts, and other material handling equipment.
  • Advanced Tracking and RFID Integration: Option to integrate these advanced tracking technologies for enhanced inventory visibility and management.
  • Batch Management and Serial Number Tracking: Supports batch management and serial number tracking, essential for industries dealing with perishable goods or traceability requirements.
  • Reporting and Analytics for Warehouse Performance: Robust reporting capabilities for analyzing warehousing efficiency and performance metrics.

Integration with Other SAP Modules

The Warehouse Management (WM) modules are commonly integrated with other SAP modules to ensure comprehensive oversight of the supply chain. Commonly integrated modules include Material Management (MM), Sales and Distribution (SD) (for shipping and receiving capabilities), and Quality Management (QM).

RFgen’s Role in SAP Warehouse Management

RFgen® puts SAP Warehouse Management into the hands of workers. Users can locate, transfer, and cycle count inventory right from a mobile device.

RFgen®’s SAP Warehouse Management Suite works in conjunction with these other SAP mobile app suites:

Mobile Inventory Applications for SAP Warehouse Management (WM)

RFgen® for SAP includes mobile applications for many transactions in its SAP Warehouse Management Suite, providing mobile automation for inquiring on and transferring inventory, as well as performing automated cycle counts.


Users can look up materials and bin locations directly from a mobile device.

Pick & Putaway

These functionalities allow users to pick materials and store them in bin locations using a mobile device.


With this functionality, users can transfer materials between locations.

Cycle Counts

Using these capabilities, users are able to quickly perform cycle counts and update SAP as counts occur.

Best Practices for SAP Warehouse Management

To get the most out of the SAP Warehouse Management module, it’s essential to also implement these best practices:

Accurate Warehouse Structure Definition

Define your warehouse structure in SAP WM accurately to reflect the physical layout of your warehouse. This includes storage types, storage sections, bin locations, and picking areas. A well-defined structure ensures efficient space utilization and streamlines operations.

Effective Use of Bin Management

Implement a logical and efficient bin management system. Use strategies like fixed bin, next empty bin, or open storage to optimize storage and retrieval processes.

Effective Inventory Management

Implement strategies for efficient inventory management, such as safety stock levels, reorder points, and demand forecasting to ensure optimal stock levels and reduce carrying costs.

Regular Data Validation and Accuracy

Conduct regular physical inventories and cycle counts to maintain data accuracy. RFgen® Cycle Count mobile app greatly accelerates the counting process, updating SAP in real-time as work occurs.

Optimized Picking and Putaway Strategies

Utilize SAP WM’s capabilities to implement efficient picking and putaway strategies. This includes FIFO (First-In-First-Out), LIFO (Last-In-First-Out), or strategies based on material types and storage conditions. RFgen® can automatically enforce these rules while guiding workers with intelligently directed work.

Use of Advanced Features and Integrations

Leverage advanced features like batch management, serial number tracking, and hazardous material handling, if applicable to your industry. Integrating physical automation systems is advised as well, such as conveyor belts, Automated Storage and Retrieval Systems (AS/RS), and Radio Frequency (RF) devices for real-time data capture and process efficiency.

Training and User Competency

Invest in comprehensive training for staff to ensure they are proficient in using SAP WM. Well-trained users can significantly enhance operational efficiency and data integrity. When it comes to a mobile solution, RFgen® for SAP reduces training requirements by 80%.

Continuous Process Improvement

Regularly review and optimize warehouse processes. Use SAP WM’s reporting and analytics tools to identify areas for improvement and implement changes accordingly. Consider integrating a KPI dashboard for live monitoring (included in RFgen® for SAP).

Training and Support Resources

The SAP community offers much in the way of training and support. Some helpful resources include:

Community and online forums also offer ways to engage with the SAP community for advice, best practices, and problem-solving strategies.

Resolving Common Issues in SAP WM

If you’re experiencing issues using SAP Warehouse Management, try visiting the SAP Support Portal.

For RFgen® users, contact technical support.

For non-customers, contact us directly to learn more about what RFgen®’s Warehouse Management Suite can do for you.

You may also wish to visit our resource detailing the problems we solve.

Transform SAP Warehouse Management Today