ERP vs. MRP: Which System is the Best Choice for Your Business?

ERP vs. MRP: Which System is the Best Choice for Your Business?

by QT9 Software on May 12, 2025

There are numerous software solutions on the market for manufacturers. Many have such similar features that it can be a challenge to know which is the best for your business -- today and as it grows.

Because material requirements planning (MRP) is such an essential process for manufacturers, MRP software that automates and connects many of your manufacturing processes can increase productivity. There are also many ERP systems that include MRP features, such as QT9 ERP.

What’s certain is that automating processes so that they effortlessly interact with each other and help your team perform tasks more easily is key to staying competitive in today’s world. Here we explore the similarities and differences between MRP and ERP software, and give you insights to utilize when choosing a software solution for your organization.

What is MRP?

Material Requirements Planning (MRP) is the process of determining the appropriate types and amounts of materials needed to manufacture a good, and ensuring those materials are available when and where they are needed for production.

The process consists of three primary steps: inventorying materials on hand, identifying what additional materials are needed, and then scheduling their production or purchase so that they arrive on time and in the right place so that operations proceed smoothly.

What is MRP software?

MRP software calculates the materials needed to meet manufacturing goals and customer demand using data from lead times, sales forecasts and production plans to determine optimal stock levels. With MRP software, companies can easily view production requirements, stock on hand and purchasing or production needs, as well as historical purchasing and production data.

Standard functions of stand-alone MRP software include:

What is ERP software?

Enterprise Resource Planning actually evolved from material requirements planning, growing to incorporate accounting functions within one, centralized solution. In addition to business areas traditionally covered by MRP, an ERP system incorporates accounting functions that give greater details into production costs as well as enterprise-wide activities, such as sales and customer interactions.

ERP software is a comprehensive solution that centralizes all of the processes that make a manufacturing business run into one electronic platform. It integrates applications to provide efficiencies, such as dynamic data population, which reduces errors and speeds time to delivery.

Typical ERP applications include:

ERP vs MRP: What's the difference?

The main difference between ERP software and MRP software is that ERP software includes integrated accounting, while MRP software does not include accounting. ERP software is more comprehensive because it connects manufacturing costs directly to accounting.

MRP software typically includes many of the same features as ERP software, but it traditionally integrates with a third-party accounting system.

Integrated MRP and ERP software

ERP software typically includes MRP functionality, making it suitable for businesses that require a full-suite solution for managing operations across multiple departments in addition to manufacturing operations. MRP as a subset of ERP focuses specifically on production planning, inventory control and scheduling. Its goal is to ensure that materials are available for production and products are available for delivery.

Benefits of ERP MRP software

Like so much in the realm of business planning, there is a lot to consider for effective material requirements planning, especially at higher production volumes or for products that are more complex.

ERP software with MRP included, like QT9, seamlessly and systematically evaluates material requirements, production schedules, sales forecasts, customer orders and inventory to calculate the optimal supply of product inputs. This leads to:

Improved production efficiency

Using a centralized database and integrations between production functions, such as purchasing and shop floor management, ERP software is able to simplify the process of ensuring that materials are where they need to be at the optimal time, so that production can proceed on time, in the correct sequence and with minimal interruptions.

Reduced costs

ERP software reduces the cost of purchases by determining the most cost-effective materials and components. It can also reduce inventory carrying costs and waste through better alignment of production and demand, and helps manufacturers avoid employee overtime through more efficient scheduling and fewer bottlenecks.

Optimized inventory

ERP software helps companies reach optimal inventory levels by using real-time and historical data to accurately forecast material needs. The software gives immediate insight into inventory locations and quantities, so you always know what’s on hand and what needs to be ordered or reordered. Inventory capabilities enable the software to automatically update inventory data when shipments arrive or leave the warehouse.

Reduced lead times

With the more accurate forecasting capabilities of ERP software, it becomes easier for manufacturers to schedule production for optimal efficiency, which keeps order-to-delivery times low and makes customers happy.

Traceability and compliance

Many manufacturers must keep detailed records of product materials. Some ERP systems enable easy traceability using barcoding for lot or serial number traceability. This satisfies regulatory mandates and makes it easier to track products in the event of a recall.

Improved customer satisfaction

Greater production efficiency means manufacturers are able to get their products to market more quickly, improving customer satisfaction and market position.

ERP vs. MRP: Which system is right for your business?

When deciding between ERP and MRP software, start by evaluating your business’s specific needs and future objectives. Consider the scope of your operations—are you primarily focused on manufacturing and supply chain efficiency, or do you require a system that integrates financials and accounting?

Small to mid-sized manufacturers with straightforward production processes may find MRP software sufficient, as it provides the necessary tools to manage materials, scheduling and inventory without the added complexity of an enterprise-wide solution.

However, if your business operates across multiple departments or industries and can benefit from seamless data flow between functions, an ERP system will offer greater long-term value. Budget, scalability and integration capabilities should also be key considerations. ERP solutions generally require a higher initial investment but provide more robust functionality to support business growth. Conducting a thorough needs assessment and consulting with software providers can help determine which system aligns best with your operational goals.