ERP (enterprise resource planning system)
An ERP holds a company's master data, orders, stock, production and accounting on one database. A single entry, such as a goods receipt, updates the stock level, the cost of the production order and the supplier balance at once.
In a Polish company the ERP carries customer and item master data, orders, stock levels, trade documents and the books. Industry modules sit on the same database: bills of materials, routings, production orders and product cost in manufacturing; price lists and customer-specific discounts in distribution; transport orders and trip settlement in logistics. The systems you meet most often are Comarch ERP XL, enova365, SAP Business One, Streamsoft Prestiż, Impuls EVO and Symfonia.
The point of an ERP is a single place of record. The warehouse, the shop floor, sales and accounting look at the same numbers, so reconciling versions stops being a job of its own. When every department keeps its own file, working out which copy is current takes longer than the task it describes.
The usual trap is the spreadsheets next to the ERP. The system does not cover some step, so the planner keeps the schedule in Excel, the process engineer prices jobs in a file of his own, and the shift leader notes scrap on paper. The ERP still shows consistent data, only not the data the plant actually runs on.
An ERP does not replace specialised systems. A WMS guides people around the warehouse, an MES collects data from machines, a TMS builds transport plans, and the ERP stays the place where orders, costs and settlements meet. The signal that this concerns your company is the same figure keyed in twice and a month-end result assembled from several exports.