PRODUCTS · INVENTORY
LEYSCO100 · INVENTORY & WAREHOUSE — LIVE IN PRODUCTION

Every movement, on an immutable ledger.

A perpetual stock ledger holds every quantity and value movement with running on-hand and value on each row — 20 typed movement types, FIFO/AVCO valuation, transfers, counts, and lot, batch and serial traceability to the unit.

See the ledgerThe Distribution line
20movement types
code-inventory
RECEIPT · 20 MOVEMENT TYPESA perpetual, immutable stock ledger — append-only, holding every quantity and value movement with running on-hand and running value on each row — posting all stock changes through 20 typed movement types (goods receipt, goods issue, scrap, sample, adjustments, transfers), valued FIFO / AVCO / Standard / LIFO. Code-verified. — Code inventory (perpetual stock ledger + 20 movement types + valuation engine), verified 2026-07 · code-inventory
FEFOlot · batch · serial
code-inventory
RECEIPT · LOT · BATCH · SERIALFull warehouse traceability — lot/batch allocation with expiry and FEFO picking, unit-level serial tracking (ALLOC to CNFRMD to RVRSED), bin-level put-away and pick, inter-warehouse 2-step in-transit transfers, and blind / ABC cycle counting with variance posting. Code-verified. — Code inventory (lot/batch FEFO, serial, bin, 2-step transfers, cycle counting), verified 2026-07 · code-inventory
one house, one ledger
reconciliation
RECEIPT · ONE HOUSE, ONE LEDGERThe same house that posts 1.66M+ distribution invoices in production runs these operations — one ledger discipline, one approval engine, one team across pay, people and distribution. — derived: c-004 (SAMWEST sql-count) + c-011 (REEDS billing ledger), verified 2026-07 · reconciliation
SAMWEST retail + distribution
ON LEYSCO100LiveWarehouse operations in production — perpetual immutable stock ledger, 20 movement types, transfers, counts, lot/batch/serial traceability.
ON LEYSCO AKILIEarly accessLeysco Akili has a native immutable stock ledger in early access — INSERT-only, enforced at the persistence layer; the in-market warehouse suite is the Leysco100 strength today.
The category

Inventory / warehouse management (WMS)

The names you'll be comparing

Cin7 · Fishbowl · Zoho Inventory · SAP EWM

The difference

A perpetual, immutable stock ledger — running on-hand and value on every row, not a periodic recount — under the same house that runs your distribution and POS.

code-inventory
RECEIPT · 20 MOVEMENT TYPESA perpetual, immutable stock ledger — append-only, holding every quantity and value movement with running on-hand and running value on each row — posting all stock changes through 20 typed movement types (goods receipt, goods issue, scrap, sample, adjustments, transfers), valued FIFO / AVCO / Standard / LIFO. Code-verified. — Code inventory (perpetual stock ledger + 20 movement types + valuation engine), verified 2026-07 · code-inventory

STOCK LEDGER · MAIZE FLOUR 10KGSYNTHETIC · FIFO @ 1,300
MOVEMENTQTYON-HANDVALUE
GR-8801 · receipt+240240312,000
GI-8802 · issue−1736787,100
TR-8803 · transfer−204761,100
GR-8804 · receipt+100147191,100
4 movements147 on hand191,100
APPEND-ONLY · RUNNING ON-HAND AND VALUE ON EVERY ROW · 147 × 1,300 = 191,100

An immutable ledger, valued as it moves.

The ledger

Every stock change posts through one of 20 typed movement types onto an append-only ledger — each row carrying the running on-hand and running value, valued FIFO, AVCO, Standard or LIFO. The position is known at any point, not counted at night.

code-inventory
RECEIPT · 20 MOVEMENT TYPESA perpetual, immutable stock ledger — append-only, holding every quantity and value movement with running on-hand and running value on each row — posting all stock changes through 20 typed movement types (goods receipt, goods issue, scrap, sample, adjustments, transfers), valued FIFO / AVCO / Standard / LIFO. Code-verified. — Code inventory (perpetual stock ledger + 20 movement types + valuation engine), verified 2026-07 · code-inventory

TRACEABILITY DIMENSIONSSYNTHETIC
DIMENSIONEXAMPLERULE
Lot / BatchLOT-2026-44 · exp 2027-01FEFO picking
SerialSN-00A7F3ALLOC → CNFRMD
BinA-12-03directed put-away
Transfer2-step in-transitship → receive
4 dimensionsunit-level
LOT/BATCH FEFO · SERIAL LIFECYCLE · BIN DIRECTED PICK · 2-STEP IN-TRANSIT TRANSFER

Traceable to the lot, the bin, the unit.

Traceability

Lot and batch carry expiry and FEFO picking; serials track a unit through its lifecycle; bins direct put-away and pick; and a true 2-step transfer holds stock in-transit between warehouses — nothing is off-ledger.

code-inventory
RECEIPT · LOT · BATCH · SERIALFull warehouse traceability — lot/batch allocation with expiry and FEFO picking, unit-level serial tracking (ALLOC to CNFRMD to RVRSED), bin-level put-away and pick, inter-warehouse 2-step in-transit transfers, and blind / ABC cycle counting with variance posting. Code-verified. — Code inventory (lot/batch FEFO, serial, bin, 2-step transfers, cycle counting), verified 2026-07 · code-inventory

CYCLE COUNT → LEDGERSYNTHETIC
count blind · ABC schedule variance not pre-filled
review counted vs on-hand exceptions surfaced
post adjustment movement onto the immutable ledger
audit chronological trail every movement, forever
BLIND / ABC COUNTS · VARIANCE POSTED AS A MOVEMENT · AUDIT TRAIL NEVER REWRITES

Counted, not guessed.

Counted

Blind and ABC cycle counts enter without a pre-filled expectation; variance is reviewed, and the adjustment posts as a movement onto the same immutable ledger — so the count is audited, and the trail never rewrites.

code-inventory
RECEIPT · LOT · BATCH · SERIALFull warehouse traceability — lot/batch allocation with expiry and FEFO picking, unit-level serial tracking (ALLOC to CNFRMD to RVRSED), bin-level put-away and pick, inter-warehouse 2-step in-transit transfers, and blind / ABC cycle counting with variance posting. Code-verified. — Code inventory (lot/batch FEFO, serial, bin, 2-step transfers, cycle counting), verified 2026-07 · code-inventory

Everything in the inventory line.

In this line
Item / Product Master (PIM-light)LiveGroups, UoM, manufacturers, packaging.
Perpetual Stock Ledger + ValuationLiveImmutable, running on-hand/value, FIFO/AVCO.
Goods Receipt / Goods IssueLive20 typed movement types.
Inter-warehouse TransfersLive1-step + true 2-step in-transit.
Physical & Cycle CountingLiveFull/cycle/spot, blind, ABC, variance.
Lot/Batch + Serial TraceabilityLiveFEFO, expiry, unit-level serial.
Bin / Location ManagementLiveBin-level put-away and pick.
Reorder / Shortfall AlertsLiveShortfall, out-of-stock, back-in-stock.
Stock Inquiry, Audit & AnalyticsLiveOn-hand/available/reserved/in-transit.
Stock Reservations & ATPEarly accessAllocation against source documents.
Kitting / AssemblyDesignedBundle build and de-assembly.
Quality-Inspection HoldDesignedSegregate stock by QI/blocked status.
one house, one ledger
reconciliation
RECEIPT · ONE HOUSE, ONE LEDGERThe same house that posts 1.66M+ distribution invoices in production runs these operations — one ledger discipline, one approval engine, one team across pay, people and distribution. — derived: c-004 (SAMWEST sql-count) + c-011 (REEDS billing ledger), verified 2026-07 · reconciliation

The same house that posts 1.66M+ distribution invoices runs this inventory — an immutable stock ledger under one discipline, every movement carrying running on-hand and value.

On Leysco Akili, inventory is a native immutable stock ledger in early access — INSERT-only, enforced at the persistence layer; the in-market warehouse suite is the Leysco100 strength today.

Built for operations that…
  • hold every stock movement on an immutable, valued ledger
  • trace stock by lot, batch, serial and bin to the unit
  • run blind and ABC cycle counts that post to the ledger
  • move stock between warehouses with true 2-step in-transit transfers
The old way → this way

A periodic recount and a valuation that never quite matches the shelf → an immutable ledger, valued and traced as it moves

Part of the house.

Related

Van Inventory

Stock on the van, drawn down per sale.

Live

Retail Inventory

Multi-warehouse ops at the till.

Live

Dispatch & Return

Stock leaving and returning to the ledger.

Live

The house has worked SAP Business One since 2017.

company-books
RECEIPT · SINCE 2017Operating heritage from 2017 as Leysco Systems Consulting (company books from 2019 preserved); LEYSCO LTD incorporated 2020, reg. PVT-5JU8VBP, Nairobi. One continuous practice, one team. — company books; registration PVT-5JU8VBP, verified 2026-07 · company-books

Put every movement on one immutable ledger.

Implemented by the team that built it. Nairobi · EAT.
See the ledger
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