Locations with recent shortages are counted weekly, and every difference is traced to the first wrong move or computer record.
When this method works well—and when it does not
Works well when
- Operations needing continuous record accuracy
- Frequently picked or high-value products
- Systems that can trigger counts from problems
- Teams able to separate count from adjustment authority
Usually a poor fit when
- No location-level inventory records
- Uncontrolled movement that invalidates counts immediately
- Cases requiring a mandated full physical inventory regardless of cycle program
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.
- 1Count schedule
- 2Find variance
- 3Adjust
- 4Repeat later
- 1Prioritize risk
- 2Freeze or control movement
- 3Count blind
- 4Recount threshold
- 5Investigate cause
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
Define counting unit and scope
- 02
Prioritize by ABC plus problem triggers
- 03
Control concurrent movements
- 04
Use blind first counts where appropriate
- 05
Separate physical recount, record adjustment, and root-cause action
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
Investigate process cause and inventory-record timing instead of increasing count frequency.
Use time windows, micro-zones, or event-triggered counts.
Set recount and approval thresholds with inventory-record review.
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
Displays can flag locations selected for count and show count status without temporary paper signs.
See how Voodoo worksWhen to choose something else
A scanner-only blind-count screen is usually sufficient when location finding is easy.
Read how recommendations are made