ERP meaning · ERP definition · ERP examples · Updated October 2026
What is ERP? The meaning, in plain English.
ERP stands for enterprise resource planning. An enterprise resource planning system is one piece of software that runs purchasing, inventory, sales, shipping and accounting from a single set of records. If you want to define ERP in one line: it is the system the whole business runs on.
ERP definition
What ERP means, and what an ERP system does.
What does ERP mean, and what is enterprise resource planning? ERP means enterprise resource planning: planning and tracking the resources of a business, which in practice are its stock, money, orders and people. The ERP system meaning, and the ERP software meaning, is the same idea turned into software. ERP software, also written ERP system software or simply an ERP program, puts every department on one database so nobody re-keys what someone else already entered.
What are ERP systems used for? A purchase order is raised, goods are received against it, stock and cost update, a customer order is picked and shipped, the invoice posts to the ledger. In an ERP that is one chain of records. Without one it is four or five tools and a spreadsheet holding them together.
I have implemented full operations on both SAP and Dolibarr. Textbook ERP systems definitions run long. The ERP software definition that matters on the floor is simple: when the dock, the warehouse, sales and accounting all look at the same number, you have an ERP. When they each keep their own, you do not.
Buy
Purchasing
Suppliers, price lists, purchase orders, receiving, supplier invoices.
Hold
Inventory
Warehouses, bins, lots and serials, stock movements, valuation.
Sell
Sales and fulfillment
Quotes, orders, picking, shipping, customer invoices, returns.
Count
Accounting
General ledger, payables, receivables, bank reconciliation, reporting.
ERP examples
Examples of ERP systems.
ERP software examples, grouped by how they are licensed. The names are the same whether you search for ERP examples, ERP systems examples or ERP platforms.
| Type | ERP system examples | How you pay |
|---|---|---|
| Enterprise suites | SAP, Oracle, Infor, Epicor | License or subscription per user, plus implementation. |
| Mid-market cloud ERP | Oracle NetSuite, Microsoft Dynamics 365 Business Central, Acumatica, Sage | Subscription per user or by usage, plus implementation. |
| Open source ERP | Dolibarr, Odoo, ERPNext | Software free or partly free; you pay for implementation, hosting and support. |
ERP glossary
The terms you will hear in an ERP project.
| Term | What it means |
|---|---|
| ERP (enterprise resource planning) | Software that runs purchasing, inventory, sales, fulfillment and accounting from one database. |
| Module | A functional block of an ERP, such as purchasing, stock or accounting, that can be switched on or added. |
| General ledger (GL) | The master accounting record every transaction posts to. |
| Purchase order (PO) | The document sent to a supplier to buy goods; receiving is checked against it. |
| Sales order (SO) | The customer order that drives picking, shipping and invoicing. |
| SKU | Stock keeping unit: the unique code for one sellable item. |
| Bill of materials (BOM) | The list of components that make up one finished unit. |
| MRP | Material requirements planning: working out what to build or buy, and when, from orders and stock. |
| WMS | Warehouse management system: bins, picking, packing and counting. It can be separate software or part of the ERP. |
| Lot and serial tracking | Tracing a batch, or one individual unit, from receipt to sale. |
| Cycle count | Counting a section of inventory on a schedule instead of shutting down for a full count. |
| RMA | Return merchandise authorization: the record that controls a customer return. |
| API | The connection that lets the ERP exchange data with marketplaces, carriers and other software. |
| Open source ERP | ERP whose source code is public and free to use and modify, such as Dolibarr. |
| Cloud vs on-premise | Whether the ERP runs on a hosted server or on servers the business owns. |
| Implementation | Configuring the ERP, migrating data, training staff and going live. |
Questions people ask
ERP, answered plainly.
What does ERP stand for?
ERP stands for enterprise resource planning. The ERP acronym is the same in business and in software: what does ERP stand for in business and what does ERP stand for in software have one answer. The ERP full form is enterprise resource planning.
What is an ERP system?
An ERP system is one piece of software that runs the core of a business from a single database: purchasing, inventory, sales, shipping, invoicing and accounting. That is the ERP system definition in plain words. Because every department works from the same records, a receipt on the dock updates stock, cost and the books at the same moment.
What does ERP mean in business?
ERP meaning in business: the system of record for operations and finance. When people ask what is ERP in business, or what is an ERP system in business, the answer is the software where orders, stock, purchasing and accounting live together instead of in separate tools and spreadsheets.
What is an ERP system in accounting?
In accounting, an ERP system is the general ledger plus the operations that feed it. An ERP accounting system posts purchases, receipts, shipments and invoices to the books automatically, so finance does not re-key what operations already entered.
What are examples of ERP systems?
ERP system examples include SAP, Oracle NetSuite, Microsoft Dynamics 365 Business Central, Acumatica, Sage, Infor, Epicor, Odoo, ERPNext and Dolibarr. The first three come from some of the biggest ERP companies and are among the most famous ERP software; Odoo, ERPNext and Dolibarr are open source ERP examples.
What is the difference between ERP and CRM?
ERP vs CRM: a CRM manages leads, contacts and the sales pipeline. An ERP manages what happens after the sale and behind it: purchasing, inventory, fulfillment, invoicing and accounting. Many ERP platforms, Dolibarr included, have a CRM module built in.
Is QuickBooks an ERP system?
QuickBooks is considered a lightweight ERP. It handles accounting well, and many small businesses run on it. It also struggles with transaction volume: in our experience it could not handle 100 purchase orders or sales orders a day. Companies typically move to a full ERP such as Dolibarr when purchasing, warehouse, inventory and fulfillment need to run in the same system as the books.
When does a small business need an ERP?
When the same data is being typed into more than one system, inventory in the books does not match the shelf, or month-end depends on spreadsheets. At that point an ERP solution replaces the re-keying with one record.
Also searched as: erpsoftware.
Sources: definitions are standard industry usage, written from operating experience on SAP ERP and Dolibarr. SAP, Oracle, NetSuite, Microsoft, Dynamics 365, Acumatica, Sage, Infor, Epicor, Odoo, ERPNext and QuickBooks are trademarks of their respective owners.
Related ERP guides
Keep reading.
Hub
Dolibarr ERP for inventory businesses
Out-of-the-box functionality, the custom modules, who it is for and how an implementation runs.
Cost
How much does an ERP implementation cost?
Published vendor ranges and the fixed-price Dolibarr implementation at $29,500.
By industry
ERP for warehouse and inventory
Receiving, bin-level stock, picking, cycle counting and shipping in one system.
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