By Vaibhav Rane, Founder, Cresolv One
Most warehouse management systems can demo picking and packing convincingly. The harder, more consequential question is whether inbound, inventory, and billing are genuinely connected — because a WMS that's strong in one module and disconnected in the rest just moves the manual work rather than removing it.
Score each vendor from 1 to 5 on the six criteria below, using what you saw on your own data, not what was described. Weight the rows by what hurts your team most today, and keep the notes so you can explain the decision later.
| Criterion | What good looks like | What to ask for |
|---|---|---|
| Putaway | Linked to the GRN with location suggestions | Ask how a location is chosen |
| Picking | Strategies that match your orders: wave, batch, zone | Ask which suit your order profile |
| Inventory | Visible by location, SKU, batch and expiry in real time | Ask how a mismatch is found and corrected |
| 3PL billing | Charges calculated from rate cards, not spreadsheets | Ask to see an invoice produced from activity |
| Dispatch | Dispatch tied to inventory and to what the customer expects | Ask what happens when stock is short |
| ERP sync | Stock and movements sync with the ERP | Ask how often and in which direction |
Pilot in one zone or one product family, ideally one with accuracy problems today. Load real stock, run real inbound and outbound for a few weeks, and count physical stock against system stock at the start and end.
Track put-away time, pick accuracy and the time spent chasing stock that is not where the system says it is. Include the people on the floor from day one, because warehouse software succeeds or fails on whether it is quick to use with a scanner or phone in hand.
Whatever you choose, write down what you expect to improve and by roughly how much before the pilot begins. It is much easier to judge a result against a target you set in advance than against one you remember afterwards.
A WMS is judged by how it behaves on a busy shift. Take the people who use it into the evaluation, because a screen that looks fine in a demo can be slow to use on a handheld scanner.
A warehouse system that cannot share stock and receipt data cleanly with your ERP creates a second set of numbers that someone has to reconcile. Ask which ERPs the vendor has connected to, what data moves in each direction, and how often. Ask what happens if the connection is down for an hour, and how the two systems recover.
Ask also about the surrounding steps: gate entry before the dock, invoice matching after receipt, and vendor appointments ahead of arrival. Warehouse delays often start outside the building, so a platform that connects these steps will show you more than one that stops at the dock door.
Long enough to cover a full inbound to outbound cycle for the zone you choose, which is usually a few weeks. A one-day demo will not show accuracy problems.
Scanning improves accuracy, but the first question is whether the software is quick to use on the floor. Ask to see it used on a handheld device, not only a desktop.
It can if charges are calculated from rate cards using recorded activity. Ask to see an invoice produced from real movements.
Count physical stock against system stock in the pilot zone at the start and end. The change in the difference is a more honest measure than any vendor percentage.
If a vendor offers a reference, use the call well. Ask a customer of similar size and in a similar industry, not their friendliest one. Questions worth asking:
Put the pilot result, the scorecard and the reference calls side by side and look for gaps between what you were told and what you saw. Confirm what is included in the price, how changes and new integrations are charged, and what support looks like after go-live. A short, clear contract and a realistic plan for the first three months are usually better signs than an ambitious promise.
Cresolv One's Warehouse Management System links GRN-linked put-away with location optimization and bin-level tracking, supports wave, batch, and zone-based picking with route optimization, gives real-time inventory visibility by location, SKU, batch, and expiry, automates 3PL billing off configurable rate cards, and syncs with your ERP and the rest of the Supply Chain Suite — including GateIN and Vendor Portal data.
Comparing vendors generally, not just this category? See our vendor-neutral evaluation framework.
A WMS that handles picking well but leaves put-away, inventory, and billing as separate manual steps has only automated part of the problem. See our Warehouse Management platform.