Inventory & Bin Management

The Inventory & Bin Management module provides perpetual inventory visibility across all warehouse facilities, managing stock balances, multi-zone bin structures, and physical stocktake adjustments.

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Inventory Architecture & Bin Types

flowchart TD
    WH[Warehouse Location] --> Z1[Receiving / Staging Zone]
    WH --> Z2[Active Picking Zone]
    WH --> Z3[Bulk Storage Racking]
    WH --> Z4[Quarantine Isolation]

    Z1 --> B1[staging Bin]
    Z2 --> B2[pick Bin]
    Z2 --> B3[storage Bin]
    Z3 --> B4[bulk Bin]
    Z4 --> B5[quarantine Bin]

1. Bin Classifications (BIN_TYPE)

Bins are categorized by operational purpose:

• storage: Standard shelving and pallet positions holding sellable inventory.
• pick: Dedicated forward pick-face locations.
• bulk: High-density overstock and reserve pallet racking.
• staging: Temporary staging zones for dock receiving or outbound shipping.
• quarantine: Isolated bins holding rejected or damaged stock excluded from sales availability.
• in_transit: Virtual bin tracking stock moving between company facilities.
• wip: Work-in-progress holding location for manufacturing assemblies.

2. Available Stock Calculation

The system dynamically computes sellable availability:

Available Quantity = On-Hand Stock - Allocated Order Reservations - Quarantine Stock

• On-Hand: Physical inventory present in warehouse storage, pick, and bulk bins.
• Allocated: Units committed to confirmed customer sales orders awaiting picking/dispatch.
• Quarantine: Units in quarantine bins awaiting inspection or return.

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Step-by-Step Workflows

1. Performing an Ad-Hoc Stock Adjustment

1. Go to Inventory (/inventory).
2. Search for the product SKU.
3. Click Adjust Stock.
4. Select the Warehouse and specific Bin Location.
5. Enter the Quantity Change (+/-) and select a reason code (e.g. Found Stock, Breakage).
6. Click Confirm Adjustment. The inventory ledger updates immediately, and the balancing expense posts to the General Ledger.

2. Conducting a Stocktake

1. Go to Inventory → Stocktakes (/inventory/stocktakes).
2. Click New Stocktake and select the warehouse or zone.
3. Warehouse staff count physical items and enter counts into the stocktake sheet.
4. Review calculated variances.
5. Click Post Stocktake to apply inventory adjustments atomically.

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Field Reference

Field	Description
Product SKU	Unique catalog identifier.
Warehouse	Physical facility location.
Bin Location	Shelf/rack address (storage, pick, bulk, staging, quarantine).
On Hand	Total physical count present in bins.
Allocated	Units reserved for confirmed customer orders.
Available	Net sellable stock (On Hand - Allocated - Quarantine).
WAC Unit Cost	Current Moving Weighted Average Cost valuation.