7 Questions You Should Ask Your WMS Vendor

E-commerce Warehouse Management System

7 Questions You Should Ask Your WMS Vendor

Q1. What is Warehouse Management System (WMS)?

A traditional warehouse management system (WMS) is a software application, to manage warehouse or distribution center operations. With the rise of e-commerce business, inventory is now beyond 4-walls of the warehouse. As a result, the next generation warehouse management system manages the fulfillment operations beyond 4-walls (e.g drop shipment, off-site receiving, locker boxes etc.). Today, best of breed WMS systems manage the whole order fulfillment process from the consumer clicking the “buy” button to all the way through delivery.

What is Warehouse Management System (WMS)?

Q2. What are the main challenges of traditional warehousing?


Inaccurate transactions end up in higher costs in supply chain operations. When an inventory transaction is completed inaccurately, it means that it will be done twice if noticed right away. If not noticed, it will have bigger losses for the company such as shipping wrong item to the customer, locking down a location for counting. Doing transactions accurately in the first time brings cost efficiency to the supply chain transactions and obviously increases margins.


Seamless processes play a key role in fulfillment productivity. Warehouse Management System brings productivity to fulfillment operations. Although workforce is crucial to accomplish the customer experience, smart logistics systems play a key role to enhance customer service and reduce costs by guiding the workforce efficiently.


In the multi-channel model, many sales points and delivery options are offered to the customer in sync. Therefore, inventory and all processes should be shared and be in cooperation throughout all channels. At this point, especially correct figures, traceability and visibility of inventory is crucial.

Warehousing Accuracy, Productivity & Traceability

“Accuracy, traceability and productivity are the basic needs of a company like food and shelter for a human being.”

Q3. What are the main functions of a traditional WMS?

All WMSs should perform certain basic functions. The basic warehouse management system functions have been considered to be as follows:


  • Arrivals
  • Receiving
  • Putaway
  • Returns


  • Picking
  • Packing
  • Shipment
  • Value Added Services
What are the main functions of a traditional WMS?

Q4. What are the challenges of an e-commerce warehouse?

Piece Delivery

A traditional warehouse usually ships products directly to another business – mostly in higher quantities and in bulk. Whereas B2C warehousing involves a higher number of individual orders and smaller quantities within the order. E-commerce warehousing is all about operational speed, accuracy and customer service.

Scalability and Temporary Workers

The fluctuations in demand require temporary workforce which means additional license, additional industrial scanners and training. An e-commerce warehouse management system should support all the devices including smartphones and tablet PCs so that the temporary workers are able to use their own smart phones.

Parallel to the growth of an e-commerce company, it should be possible to subscribe new users on a temporary basis. The warehouse management system should allow subscribing more users when they are needed and unsubscribe them as the number of orders decrease.

Multiple Sales Channels

The most challenging and critical process in the omni-channel model is inventory sharing throughout all sales channels. Required priorities, allocations and reservations should be included in the system through this cooperative infrastructure.

Single Items

In e-commerce, the average number of single-item orders is around 30%-50%. A traditional warehouse management system is familiar with and good at picking pallets and boxes from the warehouse but not picking single items.


In e-commerce, the demand fluctuates on a daily basis. As a result, e-commerce warehouses face unpredictable backorders. Automatic allocation and packing of backorders during receiving is crucial in e-commerce.

What are the challenges of an e-commerce warehouse?

Q5. What are the main benefits of an e-commerce WMS?

100% Accuracy

Warehouse Management Systems use various technologies to achieve accuracy. The most common and affordable technology is barcode and voice technologies. By scanning the product barcode and location barcode, WMS ensures the right product is picked from or put away to the right location.

50% Productivity

Finding The Right Product
The different SKUs in an e-commerce warehouse usually stated in thousands if not millions. It is very difficult for someone to find the right product in an affordable time without a system. A WMS guides pickers to the right location.

Walking Distance
In an e-commerce warehouse, a picker walks approximately 7 miles on average in a day. Most of this effort is caused by the multiple trips to pick a single order. By using batch picking and optimized routes, a WMS can reduce walking distance more than 30%.

Handling Backorders
The average backorder ratio is 15 percent in an e-commerce warehouse. A next generation WMS easily identifies the backorders during receipt and allocates products to backorders. So that the products are transferred directly to packing stations without put-away.

Because of the fluctuations in demand and the scale of inventory, workforce planning is a time-consuming activity in an e-commerce warehouse. A warehouse management system is capable of planning the next shift’s workload and resource requirement.


It is possible to count many other benefits like preventing obsolete inventory, achieving traceability and visibility, managing drop shipments, integrating to multiple channels etc.

What are the main benefits of an e-commerce WMS?

“The WMS should show how fast our supply chain is running realtime just like the cockpit of our car.”

Q6. What are the new KPIs for e-commerce warehousing?

Cycle Time

Cycle time is the new KPI of retail and e-commerce logistics. Cycle time represents the average duration between 2 packed units “coming out of the packing stations consecutively”. The lower the cycle time, the faster the fulfillment operation is. Warehouse management system reduces your cycle time with adaptive and smart logistics functions.

Cost Per Item

This KPI represents the average logistics cost to ship an individual item from the warehouse. While cycle time represents the operational speed, cost per item represents the operational productivity. Thus, achieving a low cycle time with a high cost per item is not acceptable.


Accuracy is the KPI that represents the operational quality. The expected accuracy is 100% which means:

  • All the deliveries are on time
  • All the deliveries are accurate

The ideal e-commerce logistics operation is the balance of cycle time, cost and accuracy.

e-commece warehousing KPIs

Q7. What are the outcomes for the owner?

Customer Loyalty

Customers trust us when we deliver on time and accurate. The ultimate contribution of the warehouse management system is the customer loyalty.

15% More Conversion

Higher conversion rate is the inevitable result of customer loyalty. Loyal customers are the most powerful marketers for us.

Higher Margins

Pricing is one of the most critical issues in e-commerce. Customers can access to a broad price range for the same product in seconds. We can easily state that the price is driven by the market. If you don’t have enough margins, you can’t achieve price flexibility. The simplest way to achieve higher margins is to reduce the operational costs of which WMS allows in various methods.

30% More Shipments

Do not fear selling more! Warehouse management system, by automating and planning your inventory, task and resources, allows you ship more with the same number of resources.

What are the outcomes for the owner?
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