MRP vs ERP: What’s the difference - And which one does your business actually need?

May 12, 2025 by
Smart Information Technologies Limited, Oana Dan

If you run a manufacturing business, you’ve likely come across the terms MRP and ERP. Maybe your team is still working across spreadsheets, or maybe you’re using a few different systems that don’t talk to each other. Either way, at some point, the question comes up:


Do we need MRP? Or is it time to move to a full ERP system?

While these two tools are related, they serve different purposes - and knowing how they work (and work together) is essential when planning for growth.


What is MRP? 


MRP stands for Material Requirements Planning

It’s a system designed to help you plan and manage everything needed for production - materials, components, lead times, and quantities.



MRP is built around questions like:

What do we need to produce?

What materials do we need to do it?

When should we order or make those materials?


It’s especially useful for businesses that assemble, manufacture, or distribute physical products.



 

Common MRP Features:

Production scheduling

Bill of Materials (BoM) tracking

Inventory and stock level control

Procurement planning

Demand forecasting

If you’re struggling with raw material shortages, overstocking, or production delays, 
MRP can help bring order to the chaos.


What is ERP? 


ERP stands for Enterprise Resource Planning

ERP is a broader system that covers the full spectrum of your business operations - not just production. 

It’s designed to integrate everything from finance and HR to sales, inventory, procurement, and yes - manufacturing.



In fact, most modern ERP systems include an MRP module. So instead of separate tools for stock, sales, and finance, you get one connected platform that gives you real-time visibility across your entire organization.


ERP typically covers:

  • Finance and accounting
  • Inventory and warehousing
  • Procurement and vendor management
  • Sales and CRM
  • Manufacturing (including MRP)
  • Project and HR management

Think of MRP as one piece of the puzzle - and ERP as the full picture.



 

 

MRP vs ERP: What’s the real difference?



FEATURE

MRP

ERP

Focus

Production and materials planning

All business operations

Scope

Manufacturing and procurement

Company-wide functions

Integration

May operate standalone

Fully integrated

Primary Users

Production planners

Company-wide teams

Visibility

Focused on stock and scheduling

End-to-end business insights

MRP helps you plan what to make. 

ERP helps you run the entire business.

How do you know which one you need?


You might need 

just MRP if:


  • You’re a small manufacturer focused only on production
  • Your finance and sales teams already use other tools
  • Your biggest challenge is inventory and scheduling, not company-wide visibility



But most businesses quickly outgrow separate MRP systems

You need ERP if:


  • You’re managing multiple departments or locations
  • You’re tired of reconciling data between different platforms
  • You want real-time visibility across finance, production, and sales
  • You’re scaling up and need better reporting, accuracy, and control


Modern ERP systems give you the benefits of MRP - and much more - all in one system.



Real-world example: Odoo ERP with MRP built in

At Smart IT, we work with businesses that start out just needing help with production planning - but soon realize they need a full view of operations to grow.

That's where Odoo

comes in

Odoo is a powerful, flexible ERP system that includes full MRP functionality right out of the box



  Real-time production scheduling

   Inventory and warehouse management

   Sales and purchasing integration

  Financial reporting and dashboards

  Custom workflows to fit your operation


Whether you're making custom products or managing high-volume produc​tion, Odoo helps you make smarter decisions - without switching between tools



Choosing the right system is only half the equation.

The way it’s implemented is what makes or breaks its success.


At Smart IT, we don’t 

just implement software.


We help you:

  Map your current processes and pain points

  Connect Odoo to your finance, sales, and logistics teams

  Configure dashboards and reports that match your KPIs

  Train your team to use the system with confidence

  Set you up to scale without adding complexity



We make sure your ERP works the way your business works. That’s the difference between a system that gets used - and one that gets abandoned.


What does this mean for you?


If you're outgrowing spreadsheets or jumping between disconnected tools, now’s the time to look at ERP. Not just because it's more powerful - but because it gives you control, visibility, and scalability in one system.


With a platform like Odoo and the right implementation partner, you’ll be able to:

   

  Make faster, smarter decisions

  Get real-time visibility across your business

  Reduce manual work and errors

  Plan for growth with confidence

If you’re not sure where to start, we’re happy to help you figure out what’s right for your business