ERPNext Inventory & Warehouse
Explore items, warehouse structures, stock ledgers, batches, serials, transfers, receiving and reservations in ERPNext.
Start with the operational problems that matter
Available-to-promise differs from physical stock
Batch and serial tracking is inconsistent
Stock documents do not reconcile with operations
Items, warehouses, stock ledger and reservations
Practical building blocks to assess and adapt to your operating model.
Item & Warehouse Model
Design master data, UOMs, warehouse trees and valuation.
Stock Ledger
Track receipts, issues, transfers and adjustments.
Batch & Serial
Trace movement at lot and serial level.
Reservation & Fulfillment
Define physical, reserved and available-to-sell stock.
Testing ERPNext inventory across sales channels
A suggested sequence, refined through requirements and fit-gap discovery.
- 01
Design warehouses
Map practical operational locations
- 02
Clean item masters
Set SKU, UOM and tracking rules
- 03
Test ledger
Validate transfers, receipts, deliveries and returns
What to prepare before the first workshop
Having these inputs available supports more accurate scope and risk assessment.
Discuss your requirements- Item and UOM catalogue
- Approved warehouse hierarchy
- FIFO, batch and serial rules
- Reservation and return policies
Questions worth clarifying early
Must advanced WMS be enabled at launch?
No. Start with reliable standard warehouse transactions, then introduce advanced picking, packing and bin locations where justified.
Separating on-hand stock, available stock and reservations
Physical on-hand stock may differ from available-to-sell quantity because goods are reserved, under quality inspection, in transit or not yet received. Define on-hand, reserved and available quantities before linking Shopee, Lazada, TikTok Shop or Shopify, otherwise storefront stock can become misleading.
Test receiving, transfers, sales, cancellations and returns against the Stock Ledger. For batches or serial numbers, validate FEFO/FIFO selection and quality status. Introduce picking or bin-location workflows only when operations need them, rather than making WMS a mandatory step.
Investigate inventory discrepancies by transaction time and source documents, not by repeatedly importing adjustments. Establish stock count cycles, Stock Reconciliation approvals and variance reporting to maintain a defensible audit trail.
Build the right system for your operation.
Share your processes, constraints and desired outcomes so the project can be evaluated against real business needs.