Enterprise Resource Planning (ERP)
Definition
Enterprise Resource Planning (ERP) is integrated software that runs a company's core business processes — finance, purchasing, inventory, manufacturing, and order fulfillment — on a single shared database.
In Practice
An ERP system acts as the transactional backbone of the supply chain. Every purchase order, receipt, production order, and shipment is recorded once and visible everywhere, so planning, finance, and operations all work from the same numbers instead of reconciling spreadsheets.
For a planner, the ERP is where item masters, bills of material, lead times, and on-hand balances live. The quality of every downstream tool — demand planning, MRP, warehouse execution — depends on how clean this ERP data is, which is why planners spend real time policing lead times and safety stock parameters inside it.
A typical example: a mid-size manufacturer runs SAP S/4HANA or NetSuite so that when a sales order drops in, available-to-promise checks inventory, MRP nets requirements, purchasing releases orders to suppliers, and finance sees the margin — all without re-keying data between departments.
Related Terms
A Warehouse Management System (WMS) is software that directs and records all activity inside a warehouse — receiving, putaway, picking, packing, and shipping — down to the individual location and unit.
Advanced Planning and Scheduling (APS)Advanced Planning and Scheduling (APS) software creates feasible, optimized production and supply plans by considering material availability, machine capacity, and demand priorities simultaneously — something basic MRP cannot do.
Master Data ManagementMaster Data Management (MDM) is the discipline and tooling for keeping core reference data — items, suppliers, customers, locations, units of measure — accurate, complete, and consistent across every system that uses it.
Electronic Data Interchange (EDI)Electronic Data Interchange (EDI) is the standardized, computer-to-computer exchange of business documents — purchase orders, invoices, ship notices — between trading partners without manual re-keying.