When choosing a warehouse management system (WMS), companies often make the mistake of prioritizing functionality over fit. They focus so much on selecting the right solution that they forget what they’re really selecting is the vendor.
By 2024, almost every major WMS vendor’s solution had achieved the same base functionality. That means that selection decisions can’t be made based on functionality alone. Vendors are differentiating themselves in more subtle and unique ways now, and this is what you have to look for during your selection process.
The right WMS vendor will understand your business environment and offer solutions specific to your business requirements, have solutions proven in your industry, and be able to correct gaps in the WMS implementation process. The right partner can increase the ROI you receive from the system by being cost-effective and reducing the WMS implementation timeline.
Want to find out if any vendors are missing from your evaluation list? Download the 2026 Gartner® Magic Quadrant™ for Warehouse Management Systems to understand the current state of the WMS market and gain vendor insight.
Here are some of the most common WMS selection mistakes that signal that you’re about to select the wrong vendor, and how to avoid making them.
1. You didn’t use scripted demonstration scenarios
Vendor demos are the best time for you to see how the WMS will work in your facility, but a lot of companies miss out on a large portion of that value because of one common mistake: previewing out-of-the-box functionality as opposed to functionality aligned with your warehouse operations.
When this happens, the demo ends up being a presentation of the most visually appealing functions a system offers, rather than the functions that are actually relevant to your warehouse operations. Without a demo that centers around the functions that are most critical to your business, it becomes really difficult to differentiate one vendor from another.
Here’s the solution: Develop a clear set of requirements that are unique to your business or are typically exception-based within your operation. Develop an agenda and timeline for the vendor demonstration that prioritizes your requirements first, leaving time for the vendor to demo what they think would be useful based on your business requirements.
This will allow you to see what you already know you need to see, and it will let the vendor differentiate itself by addressing things you may not have already thought of.
2. You didn’t validate how requirements are met in the warehouse management system
It’s easy to feel confident in a vendor’s ability to support your operation based on discussions during the demo. You ask them if their system can complete a task your team relies on daily, they say, “yes, we do that,” and you move on without actually seeing the software perform the task. It’s one thing to know a system can meet a requirement, it’s another thing entirely to see how it meets that requirement in a real-world scenario.
When you don’t validate how key requirements are executed in the warehouse management system, you miss important details that affect usability, configuration and WMS implementation, leading to unexpected time and cost impacts further along in the project.
Here’s the solution: In your Request for Proposal (RFP), ask vendors to identify the specific module and release level that supports each requirement. Then, use the demo to walk through those exact capabilities so you can evaluate how they function in practice.
3. You made cost your top WMS selection criteria
Budget is obviously a big factor in new WMS selections, but letting cost drive your final decision will often leave you with a subpar solution. It’s also important to know that the cost you see upon signing the contract is not the full representation of the total cost of ownership (TCO) for the system. In fact, we’ve seen several cases where the lowest cost solution at contract signing didn’t ultimately provide the lowest TCO at the end of the project.
Here’s the solution: Spend time understanding your return on investment before engaging vendors. This will allow you to better focus on the features and functions of each system and leave cost to be negotiated down the line.
A consultant or systems integrator can also be a valuable resource at this point, providing a data-backed fair market price for the solution, and supporting you during negotiations with the vendors.
4. You found no gaps in the software prior to signing a contract
If your evaluation process doesn’t reveal any gaps, even with the selected vendor, you likely missed key opportunities for differentiation between vendors during the evaluation. This is another scenario that often leads companies to select the lowest cost provider, rather than the best fit.
Even the most functionally rich solution with numerous references in your industry will not be a 100 percent fit for your operation. Warehouse operations gaps are not bad to find. Gaps that are found prior to signing a contract can be negotiated and resolved, while gaps that are found after the project begins often lead to cost and timeframe overruns.
Here’s the solution: If you properly identify your vendor requirements, you’re likely to find some gaps in the vendor’s ability to intuitively support your business needs. Keep in mind that a gap can vary from warehouse integration needs to functional requirements, such as labels or reports, which are very common.
When a gap is identified, engage the vendor to determine if it can be handled via existing functionality or a change to the workflow, through reconfiguring the underlying microservice, or by code extension.
If the latter two are necessary, work with your preferred WMS vendor to provide an estimate to resolve this gap and take that into account during the negotiation process. A common strategy in estimating the gap is to rank the design, development, testing and code promotion to the production environment into the following estimations:
- Small (up to 40 hours)
- Medium (41 to 80 hours)
- Large (81 to 160 hours)
- Extra Large (greater than 160 hours)
5. You didn’t do a detailed discovery on known warehouse operations gaps prior to signing a contract
Say you do find gaps during the evaluation process; the next step is to have the vendor quantify the level of effort and cost it will take to resolve the gap. While the gap might look the same for each vendor on the RFP, the right vendor is the one whose system architecture allows the warehouse operations gap to be resolved the quickest and most cost effectively.
Here’s the solution: Across every vendor, complete a holistic discovery of known gaps, proposed resolutions and the additional time frame and cost each resolution will incur. Picking a vendor with a history and track record of solving gaps quickly and cost effectively will be an important component of your success in the case that a gap or two does emerge during the course of the implementation.
6. You plan to implement a software module that wasn’t demonstrated
During the evaluation process, vendors may showcase capabilities across multiple products or modules to present the strongest possible solution. This may seem beneficial in the moment, except that in practice, most vendors would not recommend implementing components from different solutions. This creates a disconnect: the functionality you saw in the demo may come from a different product, module or version than the one included in the proposal or contract. As a result, you may move forward with a solution you’ve never seen operating in practice, and that may not meet all of your warehouse’s operational needs.
Here’s the solution: Ask the vendor to map one solution to each of your specific requirements and verify with the vendor that the solution(s) they show you are the same ones they shared in the RFP. Be cautious if a supply chain solution provider suggests you implement a different solution than what was demonstrated after the contract is signed. The same discrepancy can exist with “versions” of the same software solution. Verify that the version being demonstrated and responded to is also the same version recommended for implementation.
7.) You don’t see the vendor solution working in a similar customer environment to your own
We once worked with a food distributor that was replacing its WMS after only two years with the system because they had chosen the wrong vendor. When asked about its original WMS selection criteria, the distributor cited the vendor’s numerous high profile retail clients, even though none of those retailers were in the distributor’s same industry.
The mistake here is assuming that because a vendor has high-profile clients, it will automatically be a good fit for your warehouse operations. While some characteristics are analogous across industries, there is a level of risk that comes with selecting a supply chain solution provider that has little or no experience in your industry.
Here’s the solution: While the customer references don’t have to look exactly like your organization to select a WMS software partner, it is important to make sure that you talk to or visit at least one customer that has similar characteristics to your warehouse operation (i.e. size, user count, material handling complexity, functional areas implemented and experience with selected vendor).
If you’re going to select a vendor with little to no prior experience in your exact industry/environment, make sure you’ve assessed the risk ahead of time and know what your business’ threshold for risk is. Be clear on what will need to happen to ensure success.
8.) The vendor doesn’t have an automated testing strategy or partnership in place
Testing is one of the most important parts of a WMS implementation, but manual testing incurs time, money and risk that many organizations don’t have. Automated testing has become the gold standard for completing comprehensive testing on your WMS prior to go-live without jeopardizing the WMS implementation timeline or racking up labor costs. Selecting a WMS vendor that doesn’t have an existing automated testing strategy or partnership to support you during the WMS implementation will increase the risk to your go-live success, implementation timeline and project budget.
Here’s the solution: Make room in your RFP for vendors to indicate if they have an automated testing strategy or partnership. If they do, make sure that functionality is part of the demo and do your due diligence to evaluate the vendor’s testing partner, since they will play a big role in the warehouse management system implementation.
9.) The person demoing the product didn’t see your warehouse operations prior to demonstrating the software
If a supply chain solution provider doesn’t spend time in your facility prior to demonstrating the product, they won’t have any way to personalize the demonstration to your operational needs. This means you’ll end up seeing only base functionality based on generic assumptions about your needs and how other companies in your industry execute similar tasks.
This should tell you that the supply chain solution provider may not have differentiating functionality, may be used to using price as winning criteria or doesn’t often get introduced into competitive deals. A supply chain solution provider that isn’t willing to spend time observing actual people, places and processes prior to demonstrating its capabilities should be a warning sign about the makeup of your vendor partnership long-term.
Here’s the solution: Include a subjective category called ‘Effort’ in your criteria for selecting a software vendor. This category will be used to indicate how engaged the vendor was during the vendor selection phase. Did they provide their “A-Team” during the evaluation process and accommodate your requests in a timely manner? If they don’t do it prior to signing a contract, they definitely won’t once you’re a customer.
10.) Your only criteria for selecting a final vendor is to issue an RFP to the short-list vendors
A traditional RFP that requires vendors to simply respond “Yes” or “No” to a generic requirement may be viable to help educate your organization on which vendors are capable of supporting specific functions, but it serves as simply a formality for most vendors in the marketplace. Without any supporting material (e.g. to-be process flows, standard operating procedures, value stream maps), most vendors will respond with a generic “Yes” to each and every requirement, leaving you with very little content to differentiate one from the other.
When you only use the RFP as your decision criteria for vendor selection, it’s easy to become confused when the vendor identifies significant gaps in the solution after doing a more detailed discovery of your operation and specific needs.
Here’s the solution: Spend ample time having vendors visit your sites(s) and/or develop supporting scenarios within the requirements document that make it very clear how you intend to use the selected software functionality.
The secret to selecting any new technology is to first understand how that solution will support your to-be processes. If you don’t initiate this process, embrace a vendor who is willing to spend some additional time to ensure its solution will be successfully implemented.
Select the Best WMS Vendor For Your Organization
The way you complete your WMS selection process will have long-standing implications on the value and ROI you receive from your system. Take the time to define your requirements, ask the right questions, get detailed responses and demonstrations and seek external help in the WMS selection process.
While systems integrators are largely known for their ability to help with systems implementations, they can also be highly valuable during the selection process. The right counsel pays significant dividends in terms of the time-to-value and the ultimate ROI you receive from your WMS investment.
Recognize any of these red flags in your ongoing WMS selection? Contact us today and one of our WMS experts will help put you back on the right track.