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ERP vs. MRP: What’s the difference + how to choose between them


ERP vs. MRP key difference: Enterprise Resource Planning (ERP) and Material Requirements Planning (MRP) are software solutions designed to improve business efficiency. MRP focuses on managing manufacturing production, while ERP is a broader system that integrates multiple business processes, including finance, HR, and supply chain management.


According to the QuickBooks Business Solutions survey, 95% of businesses agree that software solutions are essential for business growth. When exploring software systems to manage manufacturing production, ERP and MRP are two options that can help automate processes and improve efficiency. 


However, understanding their differences will help you determine the right solution for your needs. In this guide, we’ll compare ERP and MRP systems to help you decide which is best for your business. 

What is MRP?

Material requirements planning (MRP) is a software system businesses use to calculate the materials needed for production to ensure they’re available at the right time. MRP software helps businesses plan production efficiently and maintain the correct amount of inventory for better efficiency. 


Key functionalities of MRP software generally include: 


  • Production scheduling: Automates and optimizes the production schedule 
  • Inventory management: Ensures appropriate stock levels to prevent shortages or overstock 
  • Procurement planning: Forecasts demand and manages orders for raw materials

What is ERP?

Enterprise resource planning (ERP) is a software system that helps businesses manage and integrate processes into a centralized system. While ERP includes the functionalities of MRP software, it also extends to other essential business operations.


Here are some key components of ERP software: 


  • Manufacturing: Automates production scheduling, inventory management, and procurement 
  • Financial management: Plans budgeting, provides accounting solutions, and tracks revenue 
  • Human resources (HR): Handles payroll, hiring, benefits, and employee records 
  • Customer relationship management (CRM): Stores customer data and manages sales interactions 
  • Supply chain management: Tracks logistics and distribution

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Simplify complex operations with multi-entity management, custom roles and permissions, and automated revenue recognition. Make faster decisions with multi-dimensional reporting and deeper insights in real time.

Key differences between ERP and MRP

While both ERP and MRP software help businesses manage operations, they serve different purposes. MRP focuses on manufacturing processes, inventory, and production schedules, while ERP encompasses a broader range of business functions.

The historical transition from MRP to ERP

MRP systems have evolved over time to help businesses manage processes beyond manufacturing. As technology advanced and businesses need expanded, ERP systems emerged as an all-in-one solution, integrating multiple functions into one system.


Here’s a quick overview of the evolution from MRP to ERP: 


  • 1960s: Industrial engineer Joseph Orlicky developed the first MRP system to improve production and inventory management. It aimed to address the inefficiencies caused by the current “just in case” stocking method, which led to an overflowing inventory.
  • 1970s: MRP systems continued to develop and were implemented in 700 companies by the middle of the century. 
  • 1980s: MRP II emerged, incorporating additional capabilities such as forecasting raw materials, quality control, and demand planning. It was developed due to the rise of customized products, which required more flexible production. 
  • 1990s: ERP systems were introduced, expanding beyond manufacturing and including additional functionalities like accounting, sales, and HR. 
  • 2000s: The ERP II system debuted with even more functions, like CRM and supply chain management, and web-based ERP systems improved accessibility. 
  • 2010s: ERP systems continued to evolve with the development of cloud-based technology, which allowed for additional flexibility and scalability. 
  • 2020s: Modern ERP systems leverage artificial intelligence (AI) and machine learning to automate repetitive tasks, optimize workflows, and analyze data


Timeline of the evolution of MRP to ERP, showing how capabilities developed from the 1960s to 2020s.

The modern relationship between ERP and MRP

Today, ERP and MRP systems work together to improve efficiency and streamline business processes. While MRP can function as a stand-alone software, it is often a module within many types of ERPs

MRP is primarily used for production planning, scheduling, and inventory control. It helps businesses manage raw materials, track stock levels, and ensure timely procurement. It also integrates with key ERP functions like accounting, supply chain management, and order processing, allowing seamless data flow across departments.

The definitions of ERP and MRP within a toggle showing how ERP systems include MRP functionalities.

How to choose between ERP and MRP

Below are some factors to consider when choosing between ERP and MRP: 


1. Consider your industry 

Industries that require a software system to span multiple departments will benefit from an ERP, while businesses in the manufacturing industry focused on production planning and inventory management may find MRPs sufficient. 

Here are some examples of industries where ERP is beneficial: 

  • Retail: Manages inventory, sales, and customer data.
  • Healthcare: Integrates patient records with administrative functions.
  • Education: Manages student records, funding, and administrative tasks. 
  • Hospitality: Keeps track of reservations, cleaning schedules, and guest management. 


Alternatively, here are some industries where MRP might be enough: 


  • Manufacturing: Streamlines production planning and inventory control.
  • Automotive: Manages complex supply chains and production schedules.


2. Account for complexity factors 

ERP systems provide scalability and integration, making them ideal for large enterprises, while small to medium-sized manufacturing businesses may find MRP sufficient. However, the extensive features of ERP also add complexity to implementation, often requiring significant investments in training, consulting, software, hardware, and customization.


3. Figure out the costs 

When choosing between an ERP vs. MRP, it's essential to compare costs to find the best solution for your budget and business needs. 


ERP systems typically require a larger upfront cost, ranging from hundreds of thousands to millions of dollars, depending on factors such as business size, number of users, and customization. These costs include software licensing, infrastructure, implementation, and ongoing maintenance. Many companies also hire ERP consultants for implementation assistance and training, further driving up the cost.


On the other hand, MRP systems are more budget-friendly and simpler to implement, making them a more practical choice for small to medium-sized manufacturers that don’t need full-scale ERP features.


note icon According to the QuickBooks Business Solutions survey, businesses use an average of 10 different software programs, costing around $10,000 per month. Since ERP systems consolidate multiple tools into one, they could be a smarter long-term investment depending on your business needs.


4. Note the timeline and resource requirements

ERP integration is a complex process that requires connecting multiple systems across different departments. Due to its broad scope, implementation demands more time, resources, and planning. Depending on the size of your business and the level of customization needed, ERP can take anywhere from a few months to several years to implement.


Since MRP systems are less comprehensive, they are quicker and easier to implement. Since they focus primarily on material planning and production management, you can typically get an MRP system up and running in a much shorter timeframe.

A diagram showing to choose between an ERP and MRP system including tips like considering your industry.

Benefits of integrating ERP with MRP systems

Integrating MRP with your ERP system offers several advantages that enhance business efficiency and productivity. 


One key benefit is enhanced demand forecasting, as real-time sales and production data enable more accurate predictions. This leads to optimized production planning, ensuring materials are available when needed and minimizing potential delays.


Integration also reduces manual work and operational expenses by automating tasks such as inventory management and order processing. 


Finally, businesses can achieve higher customer satisfaction by consolidating order data, leading to improved customer support and a more seamless experience.

Boost productivity and enhance profitability

Deciding between an ERP and MRP system helps ensure your business operations run optimally. By selecting the right solution for your business needs, you can improve your processes. The Intuit Enterprise Suite can help streamline financial management, HR, marketing, and more to create a seamless workflow that boosts productivity.

Introducing Intuit Enterprise Suite

Simplify complex operations with multi-entity management, custom roles and permissions, and automated revenue recognition. Make faster decisions with multi-dimensional reporting and deeper insights in real time.

ERP vs. MRP FAQ


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