Weighbridge Integration for ERPNext
Physical weight enforcement for inventory, dispatch, and billing - capture weighbridge readings into ERPNext with variance controls, dispute evidence, and audit-ready trails.
Why weight is where money leaks
In logistics, manufacturing, and agriculture, weight drives invoices, stock valuation, and contract compliance. If weighbridge readings live outside ERPNext, you get disputes, fraud windows, and reconciliation pain.
Readings are printed or emailed, then manually captured later - introducing delay, errors, and manipulation risk.
- Manual entry creates mismatches between physical and ERP quantities.
- Printed tickets are hard to audit and easy to ‘lose’.
- Dispatch and billing teams operate on different numbers.
When customers or suppliers dispute weight, teams scramble across paper tickets and spreadsheets.
- No single evidence trail linking weight → delivery → invoice.
- Variance is discovered after the stock is already moved or sold.
- Investigations depend on people, not systems.
Treat weighbridge readings as first-class ERP events
We ingest weighbridge readings into ERPNext as structured events tied to a transaction context: vehicle, driver, product, site, and document workflow.
What the integration covers
A production-grade bridge from weighbridge systems into ERPNext, designed for weak networks, replays, and audit expectations.
Capture weighbridge readings automatically and store them as structured events inside ERPNext.
- Gross / tare / net weights with timestamps and station ID.
- Multi-station support (multiple weighbridges/sites).
- Operator context: vehicle, driver, commodity, and direction.
Readings are linked to ERP documents so weight becomes explainable in inventory, dispatch, and invoicing.
- Tie to Stock Entry (inbound receipt, production intake, transfers).
- Tie to Delivery Note / Dispatch workflows (outbound loads).
- Tie to Purchase/Sales workflows for invoice quantity evidence.
Variance is detected early with policies so disputes are handled before money moves.
- Tolerance rules per item/contract/site (policy-driven).
- Exception workflows: hold, review, approve, or reject.
- Audit trail: who approved variance and why.
Build a single chain of evidence from weighbridge → stock movement → dispatch → invoice.
- Search by vehicle, date range, commodity, customer/supplier.
- Exportable evidence for audits and customer disputes.
- Retention of weighbridge ticket identifiers and metadata.
What this integration is designed to handle
Weighbridge environments are operational: weak networks, repeated readings, and high scrutiny. The integration is built for those conditions.
Buffered events are ingested safely when connectivity returns - without duplicates.
If the weighbridge resends events, ERPNext remains correct and consistent.
Every posted quantity can be traced back to physical evidence.
How we implement
We start by capturing clean events and linking them to ERP workflows, then add variance policies and reporting.
Connect weighbridge, capture readings, and link to ERPNext documents.
- Weighbridge station registration and event ingestion setup.
- Context mapping: vehicle, commodity, customer/supplier.
- Document linkage to stock/dispatch flows and validation.
Enable tolerances, exception workflows, and evidence exports.
- Tolerance rules and variance handling workflows.
- Investigation views and search/reporting setup.
- Audit and dispute evidence exports.
Frequently asked questions
Straight answers to the questions we hear most about this integration.
The weight indicator or controller on the scale exposes a serial or TCP/IP feed of the live reading. A small on-site agent reads that feed, captures the stable weight, and posts it to ERPNext over an authenticated API as a structured weight event. ERPNext never has to talk to the indicator directly, so the connection stays reliable even on older weighbridge hardware.
Yes. A typical cycle records the first-pass weight and the second-pass weight, then derives net as gross minus tare with the direction of travel taken into account. Each value is stored with its timestamp and station ID so the net figure is calculated, not typed. Stored tares can also be reused for known vehicles when only a single pass is practical.
Each weight event carries a transaction context - vehicle, commodity, direction, and customer or supplier - which links it to the right ERPNext document. Inbound weights flow to Stock Entry or Purchase Receipt, outbound weights flow to Delivery Note and the Sales Invoice quantity, so the quantity billed or received is the verified net weight. This gives one evidence chain from scale to invoice.
Weights are read straight from the indicator and written as immutable events, so operators cannot simply type a convenient number. Any manual correction is a separate, permissioned action that records who changed the value, the original reading, and a reason. Tolerance rules flag out-of-range variances for review before the linked document is posted, which closes the usual fraud window.
Yes. Each weighbridge is registered as its own station with a unique ID, and every event is tagged with the station and site it came from. This lets one ERPNext instance ingest readings from several bridges across different locations while keeping variance, throughput, and audit views separable per station.
The on-site agent buffers weight events locally and keeps operations running, then forwards them once connectivity returns. Ingestion is replay-safe: each event has a deterministic key so a resent reading is recorded once, never duplicated. Weighing does not stop because the link is down, and no captured weight is lost.
Related insights
Plain-language guides on why weighbridge data belongs inside your core systems.
Want weighbridge readings that actually reconcile?
We’ll review your weighbridge setup, stock/dispatch workflow, and dispute patterns - then design an integration that keeps weight evidence tied to ERPNext outcomes.