Order is received
Customer, product, quantity, price and delivery date are recorded in the system.
CORPORATE RESOURCE PLANNING GUIDE
What Is ERP? How Does It Work and What Is It Used For?
An ERP program manages business processes such as finance, production, inventory, purchasing and sales with shared data. In this guide you can simply examine how an ERP system works, its core modules, and which businesses need it.
Content owner: Korgün Software
First publication: September 15, 2024
Last updated: August 4, 2026
Company and experience information
BASIC DEFINITION
What Is an ERP Program?
ERP (Enterprise Resource Planning - Corporate Resource Planning), a business management system that merges records from different parts of the company into a common data structure.
When a sales order is entered, inventory, production needs, purchasing, shipping and finance records can progress in the same process. This reduces the need for each department to keep separate tables and duplicate data entry.
ERP is not just an accounting program that records data. It manages the interrelated processes from order receipt to product manufacturing, warehouse release, invoicing, and cost calculation.
SHARED DATA FLOW
How Does the ERP System Work?
ERP transfers information generated during a transaction to the relevant departments without requiring re‑entry. Authorized users see and update the part of the same record that pertains to their tasks.
Demand is calculated
Current inventory, product tree, open jobs and purchase orders are checked.
Transactions are executed
Purchasing, production, warehouse, quality, and shipping tasks are transferred to the relevant teams.
Result is reported
Cost, inventory, delivery, sales and finance results are reported with the same records.
NEED INDICATORS
When Does a Business Need ERP?
The inter‑dependency of processes and whether existing systems can manage that relationship matters more than the number of employees.
Inventory records do not match
The inventory quantity in the warehouse often differs from what sales or accounting sees.
Delivery date cannot be specified precisely
The order cannot be evaluated together with material, capacity and open production orders.
Cost is overestimated
Material, labor, subcontracting, waste and general production expenses cannot be linked to the product in a timely manner.
The same data is entered again
Order, inventory, invoice and accounting records are being rewritten into separate programs or spreadsheets.
Reporting depends on individuals
To prepare a management report you need to collect files from different departments and merge them manually.
Growth control is difficult
As new branches, warehouses, companies or sales channels are added, tracking processes becomes more difficult.
CORE COMPONENTS
What Are ERP Modules?
Not every business has to start with all modules. The modules to be used are determined based on the company’s activity area and project scope.
Finance and Accounting
Customer account, cash, bank, invoice, budget, cost, and financial reports.
Production Management
Product tree, MRP, work order, operation, capacity, scrap, subcontracting and production cost.
Inventory and Warehouse
Inventory movements, lot and serial tracking, counting, shelf management, picking and shipping.
Purchasing
Demand, quote, order, approval, goods receipt and supplier performance.
Sales and Order
Quote, order, price, discount, delivery, invoice and customer movements.
Reporting
Monitoring sales, production, inventory, cost and finance data with common indicators.
IMPLEMENTATION MODEL
What Types of ERP Are There?
ERP solutions differ based on where the infrastructure runs and how the service is delivered.
In‑house ERP
The software runs on the company's own servers. Infrastructure, backup, security and maintenance responsibilities are clearly defined within the project.
Cloud ERP
The system is accessed via the internet. Initial infrastructure and update management can be simplified according to the service model.
Mixed Structure
Some applications run on‑premise, some services run in the cloud. Integration, access and data responsibilities are planned together.
PROJECT MANAGEMENT
How to Install ERP?
ERP implementation is not just installing the software. Business processes, responsibilities, master data and integrations must be prepared together.
- 1. Needs analysisGoals, current operations, problems and project scope are defined.
- 2. Data PreparationProduct, customer, supplier, inventory and financial records are cleaned.
- 3. Installation and testingPermissions, workflows, reports, and integrations are tested with real scenarios.
- 4. Training and TransitionUsers are trained, live usage is monitored and gaps are corrected.
APPLICATION AREAS
Who Uses the ERP Program?
ERP is used by businesses that manufacture, manage multiple warehouses or branches, operate across different sales channels, and want to track purchasing and finance processes with shared data.
Even if the sector is the same, product structure, production method, order model and legal requirements can vary. Therefore, the sector name alone is not sufficient; the company's actual processes must be examined.
SELECTION CRITERIA
How to Choose an ERP Program?
The best ERP is the solution that best fits the company's needs and has an implementable project plan. Decisions should not be based solely on feature lists or license price.
- Industry and process alignment
- Integration Scope
- Data transfer method
- Training and support
- Total cost of ownership
- Scalability
APPLICATION DEMO
Explore ERP Use in Real Companies
After the general definition, you can see how ERP is used in production, inventory, shipping and cost processes through customer implementations.
Frequently Asked Questions About ERP
Short answers to the most common questions before an ERP investment.
Is an ERP system only for large companies?
No. ERP programs can also be used by SMEs that make processes more complex alongside large companies. The appropriate scope is determined based on industry, number of users, transaction volume, integration needs, and budget.
What is the difference between ERP and an accounting program?
Accounting software focuses mainly on financial records, invoicing, customer/supplier accounts and statutory reporting. ERP integrates accounting with production, inventory, purchasing, sales, warehouse and other operations in a single data structure.
What is the difference between cloud ERP and on‑premise ERP?
Cloud ERP is delivered as a service over the internet and the infrastructure can be managed by the service provider. On‑premise ERP runs on the company’s own servers. The choice should be based on security policy, network architecture, customization, maintenance responsibility and total cost of ownership.
How long does an ERP project take?
ERP implementation time varies according to company size, selected modules, data quality, integrations and user preparation. A limited scope can be completed in a few months, while multi‑company or heavily customized projects may take longer.
Can existing data be transferred to the ERP system?
Yes. After data cleaning and matching of product, customer, supplier, inventory and financial records, they can be transferred to the new system. Duplicate and missing records must be corrected before the transfer.
What is the difference between ERP and CRM?
CRM focuses on customer relationships, sales opportunities, and communication processes. ERP manages finance, purchasing, production, inventory, and sales operations. The two systems can work together or be offered together within the same solution.
What are the most common risks in an ERP project?
Unclear goals, incomplete needs analysis, incorrect master data, lack of user involvement, unnecessary customization and insufficient training are the main risks in ERP projects.
Evaluate your ERP needs with real‑world processes
Review your production, inventory, sales and finance processes to clarify the required modules and project scope.