How Pick to Light Integrates with WMS to Improve Warehouse Picking Efficiency
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- Issue Time
- Jan 7,2026
Summary
WMS integration is the foundation of the smart picking. Pick to Light + WMS integration is not a future concept—it is today’s operational baseline.
Modern warehouses are under constant pressure to pick faster, reduce errors, and adapt to rapidly changing order volumes. While Pick to Light systems are already proven to boost picking accuracy and speed, their true potential is unlocked when they are seamlessly integrated with a Warehouse Management System (WMS).
What Is WMS Integration in a Pick to Light System?
WMS integration means that the Pick to Light system does not operate as an isolated tool. Instead, it communicates directly with the warehouse's central management software.
In a typical setup:
* The WMS sends picking tasks (SKU, location, quantity) to the Pick to Light controller
* The Pick to Light labels illuminate, guiding operators to the correct locations
* Operators confirm picks using buttons or sensors
* Picking results are sent back to the WMS in real time
This closed-loop data exchange ensures that what happens on the warehouse floor always matches what the system records.
Why Pick-to-Light + WMS Is a Natural Match
1. Real-Time Order Execution
Without WMS integration, picking instructions often rely on printed lists or manual exports. This creates delays and risks outdated information being used.
With direct WMS integration:
* Orders are dispatched instantly
* Priority orders can be pushed immediately
* Changes are reflected on the shelf in real time
This is especially valuable for e-commerce and omnichannel fulfillment, where order priorities change frequently.
2. Higher Picking Accuracy
Human-readable lists leave room for mistakes—misreading SKUs, skipping lines, or picking from the wrong location.
When connected to WMS:
* Each light corresponds to a specific WMS location
* Quantities are displayed clearly on the label
* Picks must be confirmed before moving on
As a result, many warehouses achieve 99.9%+ picking accuracy after integrating Pick to Light with WMS.
3. Faster Onboarding and Consistent Performance
WMS-driven Pick to Light workflows significantly reduce reliance on worker experience.
New operators can:
* Follow lights instead of reading pick lists
* Learn warehouse layouts faster
* Reach stable productivity within days, not weeks
For warehouse managers, this means more predictable performance across shifts and seasons.
How Data Flows Between WMS and Pick to Light
A standard integration typically includes the following data exchanges:
From WMS to Pick to Light:
* Order number or task ID
* Location ID
* SKU or item code
* Pick quantity
From Pick to Light back to WMS:
* Pick confirmation
* Completion time
* Exception or error signals
This bidirectional communication allows WMS to maintain accurate inventory levels and provide real-time progress visibility.
WMS integration is the foundation of the smart picking. Pick to Light + WMS integration is not a future concept—it is today's operational baseline.
Looking to integrate Pick to Light with your existing WMS? Share your warehouse size, SKU volume, and workflow requirements with us (sales@sertag.com) , and we'll help you design the right solution.
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