What is a WMS (warehouse management system)? | SAP Insights (2023)

What is a WMS (warehouse management system)? | SAP Insights (1)

A WMS, or warehouse management system, is software that helps companies manage and control daily warehouse operations, from the moment goods and materials enter a distribution or fulfillment center until the moment they leave. WMS software systems are a key component of supply chain management and offer real-time visibility into a company’s entire inventory, in warehouses and in transit. In addition to inventory management, a WMS offers tools for picking and packing processes, resource utilization, analytics, and more.

WMS meaning: a warehouse management system is software that helps companies manage and control daily warehouse operations, from the moment goods and materials enter a distribution or fulfillment center until the moment they leave.

Now more than ever, wholesalers, third-party logistics (3PL) providers, and shippers are under pressure to fulfill and deliver omnichannel orders at the speed of Amazon. E-commerce sales have also surged. In 2019 alone, Statista reports that U.S. online retail sales amounted to US$343.15 billion – and they’re projected to reach almost $476.5 billion by 2024. While online sales and expectations for fast shipping are growing, the labor pool is shrinking. And until the COVID-19 pandemic took hold in mid-March of 2020, a low national unemployment rate made it difficult to find warehouse workers. Although the number of available workers is temporarily higher, post-COVID-19 warehouse labor will likely be scarce once again. These forces all create the need for faster, more efficient warehouse management and logistics processes.

A good WMS system can help by streamlining every facet of warehouse management – from receiving, put-away, and pick, pack, and shipping processes to inventory tracking and replenishment. And it organizes all of these activities from a single interface. Warehouse management systems also integrate with other tools, including basics like bar code scanning and RFID labeling, more advanced robotics and augmented reality (AR) wearables, and other mission-critical solutions, such astransportation management systems(TMS),ERP, and logistics software.

Five benefits of a warehouse management system

(Video) What is a Warehouse Management System? Everything you need to know about WMS in 4 minutes !!

A robust, digital warehouse management system is essential for any business with on-hand inventory – and can help save money and gainnewefficienciesin many areas.Thetop five benefits of a WMS systemare:

  1. Improvedoperationalefficiency:WMS systems automate and streamline warehouse processes from inbound receipts to outbound deliveries – for improved efficiency, smoother operations, and the ability to handle higher volumes. They reduce errors in picking and shipping goods and eliminate duplicate and unnecessary work. A WMS also shares data with ERP and transportation management systems, giving you a holistic outlook that extends beyond your warehouse and helps expedite the movement of goods.
  2. Reducedwaste andcosts:If you have date-restricted or perishable stock, WMS software can identify which items need to be picked first, or which might need a sales push, to minimize waste. It can also help you determine the most effective use of warehouse space, from inventory placement to optimal travel paths. Some systems offer advanced simulations to create floor plans and place pallets, shelves, and equipment in the best locations to run at peak efficiency and save time and money.
  3. Real-timeinventoryvisibility:Using barcoding, RFID tagging, sensors, or other location tracking methods, a WMS system gives you real-time insight into your inventory as it moves into your warehouse, around it, and on to the next location. With this visibility, you can create more accurate demand forecasts, run a just-in-time inventory strategy, and improve traceability – which is especially important in the event of a recall.
  4. Improved labor management:A WMS can help you forecast labor needs, create schedules, optimize travel time within a warehouse, and assign the right task to the right employee based on skill level, proximity, and other factors. A good WMS system can also assist in boosting employee morale by creating a more relaxed, organized, and safe environment where workers feel their time is valued and being used wisely.
  5. Bettercustomerand supplier relationships:With a WMS, customers enjoy improved order fulfillment, faster deliveries, and fewer inaccuracies – which increases their satisfaction and loyalty and improves your brand reputation. Suppliers can also experience reduced wait times at loading bays and docks, for improved relations.

What does a WMS system do?

Anyactivitiesflowing into and out of the warehouse, and those that ripple out to the extended supply chain,canbe improved with a goodWMS – from receiving and storage to picking, packing, and shipping.Thecore features of a warehouse management system support these activities in the following ways.

Receivingand put-awayprocess

A WMS can help companies receive, process, and put away items in the most efficient way based on business rules and warehouse flow. Before warehouse management systems, a pen and paper were used to receive items and reconcile them against purchase orders and physical receipts – and some smaller warehouses still use that approach today. In fact, in a 2018 Peerless Research survey, 87% of respondents said they were handling materials manually during the receiving process.

AWMS system supports usingRFID technologyandintegration with billing and other software so that items can beautomatically received, validated, and reconciledagainst digital purchase orderswith the scan of a barcode, andwith labels printed foreasierstorage and retrieval.

Inventory management

Warehouse management softwareprovidesreal-timevisibility into an organization’s inventoryacross any location, including items in transitand in stores. It provides tracking information using automatic identification and data capture (AIDC) technology such as barcodes or RFID.And many systems support cycle counting and demand forecasting using advanced analytics and insights into product and vendor performance. With these insights, companies canadjust inventory levels on the flyto ensure there’s just enough stock to satisfy customer demand, whether in-store or online.

Accurate inventory tracking and other practices are key to improving order rates – meaning orders that arrive complete, on time, undamaged, and with an accurate invoice. They can also helpallocateinventory according to custom workflowsand picking logicso that inventory can be moved faster, both into and out of the warehouse.

Order picking,packing, and fulfilment

Themost commonly citedplace for packing and fulfillment activities is in the warehouse, according to aLogistics Magazine survey. AndResearchGateestimatesthat the costs related to order picking make up 55%of the total cost of warehousing.

WMS systems can help lower these costs by guiding the most efficient way to store, retrieve, and pack products. They also support picking technologies that streamline the process, such as radio frequency (RF) with and without scanning verification, pick-to-light and pick-to-voice technology, robotics, and algorithms that can help optimize picking paths.

Some warehouse managementsolutions make it easier to fulfill orders using techniques such as single order picking, batch picking, zone picking, cross-docking, wave picking, “put” to order, put-wall systems, and more – all helping to streamline order fulfillment.

(Video) Microlistics WMS Demonstration - Warehouse Management System Overview


Many warehouse systems integrate with transportation management and logistics software that allows for myriad ways to expedite the fulfillment process – generating bills of lading, packing lists, and invoices for shipments automatically, for example, as well as sending out automatic shipment notifications.

With real-time tracking features, companies can keep tabs on whether packages arrive on time and to the correct destination.

It pays to get this right. Best-in-class warehouse operations get the vast majority of shipments off the dock and in transit to the destination on time.

Labor management

Getting insights into labor-related costs and productivity can help warehouses run leaner, more efficient operations. A WMS can provide real-time visibility into warehouse workers, labor costs, response times, productivity gaps, trends to plan, and more – so companies can react accordingly.

Besides providing key insights, many systems also support task interleaving based on factors such as priority or proximity to help minimize workers’ overall travel time as well as “deadheading” or wasted time. They can also help with planning and scheduling, either directly or through integration with other systems.

Yard and dockmanagement

Features for yard and dock management can helptruck driversfind the right loading docksquickly.Support for cross-docking, wheregoods arriving into the warehouse are immediately placed into outgoing shipments without interim storage, is ideal for fresh grocery products. The software helps with this by checking receiving scans againstcurrent sales orders, then notifying the receiver if the goods should be placed in a cross-docking location.

Warehouse metrics and analytics

Real-time data can be automatically collected through a WMS instead of relying on manual data collection methods, eliminating keying errors and drastically speeding up the process. This data canalsobe integrated with analytics totrack important metrics, such as on-time shipping, inventory accuracy, distribution costs, order or line fill rate, order cycle time, and more. The system can then create visual reportsthat can be easily shared to stakeholders and be used tomake adjustments.

Types of warehouse management systems

There are three main types of WMS software: standalone (on-premise and often a homegrown legacy system), cloud-based, and applications built into ERP orsupply chain managementplatforms(either on-premise or hosted in the cloud).Each type of WMS has advantages and drawbacks, and the best type will differ from business tobusiness:

  • Standalone WMS:These systems areusuallydeployed on the company’s own premises using their own hardware. They can generallysupport greater customization(though these can be costly)and the organization can maintain tighter control overtheir data and software.Although the initial cost of the system is substantially higher than other options, oncea company owns it, they own it.At the same time, updates,maintenance, and the costs associated with them arethe responsibility of the organization.As the WMS ages, it becomes increasingly difficult to integratewith otherplatforms and to implementnew technologies.
  • Cloud WMS: Cloud-based WMS systems can be rapidly deployed with lower up-front costs. Delivered as software-as-a-service (SaaS), they provide more flexibility to support seasonal and other changing market conditions – and they are easier to scale as companies grow. Through regular updates, warehouse management in the cloud offers a quicker path to innovation. And someone else takes on the burden of maintaining and updating the system. SaaS vendors also invest a lot of money and expertise into security measures and provide disaster recovery capabilities. Cloud warehouse management systems can also be more easily integrated with other solutions.
  • IntegratedERPand SCM-based WMS:Some warehouse management systems are built as modules or applications that integrate with ERP and supply chain platforms. The advantage of these is that they are able to play better with other solutions in overlapping areas, such as accounting and business intelligence. They provide a holistic view across the business and logistics chain to allow for end-to-end transparency and for warehousing and logistics processes to be orchestrated and executed together. Ultimately these capabilities can be used to optimize operations and provide fast, agile fulfillment experiences.

Smart warehousing technology

To meet changing customer buying patterns, channels, and expectations – and to keep pace with evolving markets and new disruptions – companies need smart warehousing technologies, from AI and machine learning to autonomous robots.

Warehouse automation

Automation technologies are having a significant impact on warehouses and distribution centers. Warehousing workflows and processes that can be streamlined through automation include data collection, barcoding, scanning, picking and packing, shipping, and inventory tracking. This automation makes it possible to operate much more efficiently and scale to changing demand. It also cuts down on human errors such as keying in the wrong shipping address or SKU.


Voice picking, also known asvoice-directed warehousingandpick-by-voice,allowsoperators tocarry outtasksand communicate when they’ve been completed without having to use paper ortheir handsandeyes.Operators use a voice-picking device, usually avoiceheadset or a voice-dedicated terminal, to receive spoken instructions from the WMS system about where and when to pick incoming orders. Workers can use everyday language to send real-time updates to the warehousing system, including when batches are completed.


Frontline warehouse workers depend on mobile devices todo their jobs more efficiently. In the 2020 Warehouse DC Equipmentsurvey, 73% of participants were using smartphones and tablets, 55% bar code scanners, and 18% GPS technology (with 28% planning to deploy GPS in the next 12 months). AWMSthat can supportintegration with these technologies is critical.

(Video) WMS Express - Comprehensive Overview

AI andinternet of things (IoT)in warehouse management

Artificial intelligence and the IoT are being increasingly folded into warehouse operations. They promise to help businesses respond dynamically to rapidly changing warehousing conditions instead of having to follow pre-defined rules. IoT sensors provide the data and AI can analyze it and make advanced predictions that weren’t previously possible. The two technologies work hand-in-hand to help companies shift to a demand-driven warehousing model.

IoT data flows into the WMS from myriad locations, including from material handling equipment such as conveyors, smartphones and handheld devices, passive radio beacons, RFID, and more. AI systems take this data and transform it into usable insights, such as trends, predictive models, and other algorithms that help businesses make important decisions based on current conditions. These technologies can be put to work to help manage routing and labor movement, batch orders, slot inventory dynamically, and much more.

Warehouse robots

Robots that operate in warehousesrely on AI andmachine learningto make decisions based on input from their surroundings. And by using a combination of video, audial, thermal, and haptic sensors, robots can measure ambient temperature and even perceive touch. If integration is supported, WMS software directs their activities.

Thereare a variety of robots used in distribution centers and warehouses today that can augment some workforce tasks and automate others.

Automated guided vehicles (AGVs), for example, use a track or magnetic stripe to transport inventory around the warehouse, while autonomous mobile robots (AMRs) rely on onboard sensors, computers, and maps to navigate the warehouse and reroute when needed. AMRs can identify information on packages to assist with sorting and inventory checks. Aerial drones are fitted with optical sensors and use deep learning technologies to scan items in high and dangerous places quickly and upload the latest counts to the WMS system, provided that system can support the integration. And automated storage and retrieval systems (AS/RS) can store and retrieve items aided by software that directs their operations. These can take the form of shuttles, cranes, or even climbing robots.

Therearea wealth of advantages to using robots in the warehouse, the most obvious being increased speed of operations. But worker safety and morale can also improve as dangerous and mundane jobs are replaced with morestrategictasks.

Augmented and virtual realityapps

Augmented reality(AR) technology involves using a camera to captureareal environment, such as an aisle in a warehouse,andthen overlays instructions or information on that environment – on a mobile device.AR smart glasses, for example,allow operators to carry out tasks without using their hands. These apps can map out routes, show where bins are located, and more.Virtual reality(VR) technologies are alsobeing usedfor everything from training lift truck operatorstomaking delivery routes safer.

Explore a modern WMS

Keep up with changing demand, lower cost with SAPExtended Warehouse Management.

Learn more

Warehouse management FAQs

Awarehouse management system (WMS)is software that streamlines every part of warehouse management – from receiving and storage to picking, packing, shipping, inventory tracking, and all the steps in between. A WMS helps companies increase operational efficiency and reduce waste and costs, while improving labor management and customer and supplier relationships. Warehouse management systems integrate with a variety of other tools and solutions including bar code scanning, augmented reality (AR), transportation management systems (TMS), and enterprise resource planning (ERP).

There are three maintypes of warehouse management systems(WMS): standalone, cloud, and integrated. Standalone WMS systems are deployed on premise using the company’s own hardware. Cloud-based WMS systems are delivered as scalable SaaS offerings in a public or private cloud. And integrated WMS systems are delivered as part of a broader enterprise resource planning (ERP) or supply chain management (SCM) solution.

(Video) Introducing the World's Most Advanced Warehouse Management System, Manhattan Active® WMS

SAP Insights Newsletter

Subscribe today

Gain key insights by subscribing to our newsletter.


What is an WMS system in a warehouse? ›

What Is a Warehouse Management System (WMS)? A warehouse management system (WMS) is a software solution that offers visibility into a business' entire inventory and manages supply chain fulfillment operations from the distribution center to the store shelf.

What is a warehouse management system WMS and how is it used to make a warehouse more efficient and effective? ›

A warehouse management system optimizes a warehouse's internal operation which can then extend to the broader supply chain. Within the warehouse, a WMS streamlines the entire warehouse process from inbound receipts to outbound deliveries improving operational efficiencies and reducing costs.

What is the importance of having a warehouse management system? ›

One of the main functions of a Warehouse Management System is to improve all stock control and tracking. You will be able to assist clients with goods and products. In which they want and keep up to date with relevant stock information. This should in the long run improve all customer satisfaction levels.

What is warehousing management in 100 words? ›

Warehouse management encompasses the principles and processes involved in running the day-to-day operations of a warehouse. At a high level, this includes receiving and organizing warehouse space, scheduling labor, managing inventory and fulfilling orders.

What is WMS and how it works? ›

Warehouse management system WMS is known primarily as software and a set of pre-defined processes that enable organizations to authorize and supervise warehouse operations. This course of action happens from the arrival of goods or materials into the warehouse toil the time they are given the clearance to move out.

What is WMS and examples? ›

A warehouse management system is used to manage the warehouse operations such as in and outgoing inventory, picking/packing/shipping, and organizing inventory replenishment. WMS software brings better visibility and organization to the entire warehouse operations.


1. Warehouse Management 101 in Dynamics 365 Supply Chain Management
2. How to Choose the Right Warehouse Management System Without Losing Your Mind
3. Focus Warehouse Management System (WMS) Preview
(Focus Softnet - Far East)
4. WMS Express - Comprehensive Overview
(Insight Works)
5. Exacta WMS: Supply Chain Software | Warehouse Management System
(Bastian Solutions)
6. What NAV has to offer in Warehouse Management System (WMS)
(Innovia Consulting)
Top Articles
Latest Posts
Article information

Author: Reed Wilderman

Last Updated: 11/30/2022

Views: 6140

Rating: 4.1 / 5 (72 voted)

Reviews: 95% of readers found this page helpful

Author information

Name: Reed Wilderman

Birthday: 1992-06-14

Address: 998 Estell Village, Lake Oscarberg, SD 48713-6877

Phone: +21813267449721

Job: Technology Engineer

Hobby: Swimming, Do it yourself, Beekeeping, Lapidary, Cosplaying, Hiking, Graffiti

Introduction: My name is Reed Wilderman, I am a faithful, bright, lucky, adventurous, lively, rich, vast person who loves writing and wants to share my knowledge and understanding with you.