Eight labeled totes are loaded in fixed positions, follow one route, and transfer directly to packing.
When this method works well—and when it does not
Works well when
- Small- and medium-cube orders
- Batch or cluster picking
- Changing layouts and seasonal needs
- Operations seeking low-infrastructure automation
Usually a poor fit when
- Very bulky or heavy freight
- Unsafe aisle width or turning radius
- Orders that cannot remain separated physically
- Routes dominated by stairs or unsuitable floor
Show exactly what happens at each step
Write down actions that someone can see or confirm: what the worker does, what moves, who owns the next step, and what happens if something goes wrong.
- 1Generic cart
- 2Loose totes
- 3Manual labels
- 4Sorting at pack
- 1Load named positions
- 2Guide route + put
- 3Close orders
- 4Exchange cart
Get these basics right before adding technology
- One named person owns the process, and everyone agrees what one task includes
- Current time, accuracy, problem, and volume numbers collected using written rules
- One named person corrects product and location information
- A written backup method and a clear path for getting help
If workers cannot reliably identify the item, order, or location, correct that problem before expecting new guidance equipment to improve accuracy.
Step-by-step procedure
- 01
Use 90th/95th percentile order size for position sizing
- 02
Keep confirmations and displays in comfortable reach and view
- 03
Define cart identity and position numbering
- 04
Design cart loading, exchange, charging if applicable, and incomplete-order paths
- 05
Measure full cart cycle, not pick motion alone
Information the process must track
For each task, decide what item or order is being worked, where it comes from, where it goes, how much is expected, how the worker confirms completion, what happens when something goes wrong, and which system records the final result.
Technical notes for the warehouse software or IT team
Use one unique task ID. Re-sending the same message should not create a duplicate move or pick. Keep a way to compare records and repair differences when messages are delayed, repeated, or missed.
Decide what workers should do when something goes wrong
Set ownership, aging, and incomplete-order release rules.
Change access, position geometry, or batch size.
Stage ready carts and measure the handoff cycle.
Numbers to watch
Before the test starts, write down what is counted, what it is divided by, when the clock starts and stops, what is excluded, and where the data comes from. Keep those rules the same through the test.
Test it on a small scale before a full rollout
Trial steps
- Choose one realistic area, shift, and order mix
- Watch the current method long enough to include normal work and a busy period
- Test the new method using exactly the same measurement rules
- Review every problem and worker workaround before expanding the change
What must be true before rollout
- The target output is maintained for one full, realistic shift
- Accuracy and problem recovery meet the written target
- New workers can follow the process without unwritten tips from experienced workers
- The backup method works, and the team can return cleanly to the normal process
Voodoo is one possible way to guide the work—not the answer to every problem.
Where it may help
Wireless Voodoo displays mount on cart positions, change with each batch, and support text, barcodes, color, buttons, and arrows.
See how Voodoo worksWhen to choose something else
For a two-order cart with obvious containers, a printed position label may be all that is needed.
Read how recommendations are made