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Fullstack bin-drift is not ShipBob count-delta

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CalculatorFullstack cycle-count variance · Calculator lives in the articleOpen

Divide absolute bin-drift units by units counted on one Fullstack count cut. That ratio is FS bin-drift %.

Pair: Cycle-count variance on Stock. ShipBob twin: count-delta. Slot twin: slotting miss.

What you type

Cycle-count variance units — Absolute unit gap between Fullstack campus cycle count and the count sheet in the cut.

Units counted — Units counted on that same Fullstack count cut.

FS bin-drift % = cycle-count variance units ÷ units counted × 100. Fat FS bin-drift % usually means bin / slot drift or ghost inventory — chase that campus bin; never invent an FS bin-drift chip.

What not to do

Skip inventing FS bin-drift %. Skip pasting a ShipBob or ShipMonk count file into Fullstack campus bins. Skip folding slotting misses into count-delta. Skip blending SKUs when one bin owns the hole.

Related: Stock, count-delta, slotting miss, ShipMonk cycle count.

Procedure

  1. Type cycle-count variance units and units counted.
  2. Read FS bin-drift %.
  3. Chase bin / slot drift when FS bin-drift % is material.

Failure modes

  • Inventing FS bin-drift %.
  • Pasting a ShipBob or ShipMonk count file into Fullstack campus bins.
  • Folding slotting misses into count-delta units.

Worked example

None on this page yet. When one lands it will be a real case: what broke, the number, and what changed. Not a composite.

Glossary

FS bin-drift %
Cycle-count variance units ÷ Units counted × 100.

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FAQ

Is this ShipBob cycle-count variance?
Different 3PL book. [Cycle-count variance](/manuals/shipbob-cycle-count-variance) divides ShipBob count-delta by units counted. Here you only divide Fullstack campus bin-drift by units counted.
Is this Fullstack slotting-miss rate?
Sibling Fullstack door on slots, not counts. [Slotting miss rate](/manuals/fullstack-slotting-miss-rate) is slotting misses ÷ picks. This page is count-delta ÷ units counted.
What FS bin-drift % should I invent?
None. Pull cycle-count variance units and units counted from the same Fullstack count cut.