Material Requirements Planning
MRP Software for UK Manufacturers
MRP software works out what to buy and make, and when. Here is how MRP works, what the best MRP software for manufacturing should do, where it stops, and what UK manufacturers add to close the gap on the shop floor.
Definition
What is Material Requirements Planning (MRP)?
Material Requirements Planning (MRP) is a planning method and software that makes sure the right materials and components are available when production needs them. MRP takes demand from sales orders and forecasts, explodes your bills of materials, checks stock, and calculates what to buy or make and when.
MRP is a planning tool. It answers the question of what should happen next week. It does not tell you which job is running right now, or whether it is running late.
How it works
How does MRP work in a factory?
Starts with demand
Takes customer orders and forecasts to determine which finished goods are needed and by which dates.
Explodes the bill of materials
Uses your BOMs to break finished items down into every component and raw material required.
Checks inventory and supply
Looks at stock on hand, open purchase orders and work in progress to see what is already covered.
Generates planned orders
Suggests new purchase orders and production orders with recommended dates and quantities.
Capabilities
Core functions of MRP
- ✓Demand and forecast handling
- ✓BOM management and explosion
- ✓Inventory and availability checks
- ✓Purchase planning and suggested purchase orders
- ✓Work order creation and rescheduling
- ✓Basic capacity checks, in some systems
- ✓Lead time and reorder point management
- ✓Supplier requirement scheduling
Benefits
Benefits of MRP for manufacturers
Fewer material shortages
Clearer visibility of what is needed and when, so jobs are not held up waiting for parts.
Reduced excess stock
Less guesswork and less over-ordering to cover uncertainty.
Smoother production
Fewer last-minute schedule changes caused by missing components.
Better supplier planning
A clear forward view of requirements and timings to share with suppliers.
Where it fits
MRP vs MES vs ERP: where does MRP fit?
MRP is the planning layer. It sits between the commercial system of record and what actually happens on the floor.
| Layer | What it does | Its job |
|---|---|---|
| ERP | Finance, sales, purchasing and high-level planning | The commercial system of record |
| MRP | What to buy and make, and when, from demand and BOMs | Planning, working from planned data |
| MES | What is actually happening on the floor right now | Execution, working from live events |
The gap
Limitations of MRP, and where you need more
- ✓MRP works from planned data, not live shop floor events
- ✓It does not show which job is actually running, or stopped, right now
- ✓It does not capture labour, machine time or quality events per operation
- ✓It struggles in high-mix environments where the plan changes daily
- ✓Job costing stays theoretical until someone reconciles it by hand
- ✓Delivery promises rely on the plan being followed, not on evidence that it was
Buying guide
What to Look For in the Best MRP Software for Manufacturing
There is no single best MRP software for manufacturing. The right system is the one that matches how you build, how often your plan changes, and what your team will actually keep up to date. For discrete manufacturers making to order in high-mix, low-volume batches, these are the questions worth asking in a demo.
BOMs that match how you build
Multi-level bills of materials are standard. Ask what happens when a customer changes the specification after the job has been released. Many systems lock the BOM at that point. DynamxMFG lets you modify BOMs after release.
Stock figures you can trust
MRP is only as accurate as the stock it starts from. If issues and receipts are keyed in at the end of the week, the plan is wrong before it runs. Look for stock movements recorded as they happen.
Purchasing that follows the plan
Shortages should turn into suggested purchase orders with dates and quantities, so buyers are not rebuilding the list in a spreadsheet.
Capacity, not just materials
Plenty of MRP tools assume every work centre has unlimited hours. Check how the system handles capacity before you trust its dates.
Feedback from the shop floor
A plan with no feedback loop drifts. The best setups feed actual job progress back from the shop floor, so the next MRP run starts from reality.
Links to your accounts package
Orders, invoices and costs should flow to the finance system you already use rather than being typed in twice.
UK manufacturers
MRP Software in the UK: What to Check Before You Buy
A lot of MRP software is built for larger businesses or for markets outside the UK. For a UK SME, three things tend to decide whether a system sticks.
Your accounts package. Most UK SME manufacturers already run Sage, Xero, QuickBooks or Microsoft Business Central, and the finance team does not want to move. DynamxMFG integrates with all four, so MRP and shop floor data sit alongside the accounts rather than replacing them.
Support you can reach. When the plan breaks on a Monday morning, you need someone in your time zone who understands a UK job shop. DynamxMFG is built and supported by a UK team based in Northampton, who configure the system around how your factory runs.
Time to value. A full ERP with MRP typically takes 12 to 18 months. DynamxMFG goes live in 90 days from kick-off.
Gloucestershire Machining Centre, a precision CNC subcontractor, had no job visibility and no way to track profitability. After moving onto DynamxMFG it increased capacity by 40% and reached 94% on-time delivery. As its MD Paul B put it, "DynamxMFG enabled us to monitor machine time and see whether we're making a profit or loss on each component."
Your options
Standalone MRP, ERP With MRP, or MRP Plus MES?
When you shortlist MRP software, you are really choosing between three set-ups.
| Set-up | Suits | Watch out for |
|---|---|---|
| Standalone MRP | Businesses whose main problem is running out of parts or over-ordering | No view of what is happening on the shop floor once jobs are released |
| ERP with an MRP module | Larger firms replacing finance, sales and purchasing in one go | Long implementations and a finance system change nobody asked for |
| MRP plus MES | High-mix discrete manufacturers who need the plan and the shop floor in step | Make sure both sides share one set of jobs, BOMs and stock |
For the full breakdown of how the three layers split, read our guide to MRP vs MES vs ERP for UK discrete manufacturers.
Shortlist
Best MRP Software for Small Manufacturers in the UK: A Fair Comparison
If you are searching for MRP software in the UK, these seven names come up most often. They are all real products with real customers, and each one suits a different kind of business. The table below sets out who each one is built for, where it is strong, and what to check before you sign. Pricing is the vendor's published figure as of 2026 where one exists. Prices change often, so confirm them with the vendor.
| Software | Built for | Where it is strong | What to check |
|---|---|---|---|
| MRPeasy | Small manufacturers and distributors wanting affordable cloud MRP. Published pricing from $49 per user per month (as of 2026) | Low entry price, self-serve trial, broad MRP footprint, Xero and QuickBooks integrations | API and webhooks sit on the top tier. UK help comes through partners rather than MRPeasy directly |
| Katana | Product businesses selling stock items across several channels. Core plan from $299 per month (as of 2026) | Clean, modern interface and a free tier for very small catalogues | Manufacturing management and traceability are paid add-ons, so price the full set you need |
| Odoo Manufacturing | Businesses that want one modular suite for sales, stock, accounts and production | Very broad suite, per-user pricing, and a free Community edition | Shop Floor, Quality and PLM are Enterprise-only. Sage and Xero connectors are third-party apps |
| WinMan | UK small to mid-sized manufacturers wanting a full ERP on one database | 30-plus years in the UK, UK support, batch and serial traceability, integrated financials | It is a full ERP, so you replace finance and CRM too. Pricing is not published |
| Access FactoryMaster | UK manufacturers with complex multi-level production, part of the Access Group | Deep MRP, strong sector credibility in engineering and aerospace, well-regarded support | Reviewers mention upfront cost, extra modules and a learning curve. Pricing is not published |
| SAP Business One | Growing SMEs wanting an established ERP through a partner. Cloud pricing roughly $95 to $250 per user per month (as of 2026) | Mature ERP, large partner network | Most manufacturing capability comes through Beas, a third-party add-on, so there are two vendors to manage |
| DynamxMFG | UK SME discrete manufacturers, roughly 10 to 200 people, making to order | MRP and shop floor tracking in one system, live job costing, 90-day go-live, UK team, Sage, Xero, QuickBooks and Business Central integrations | It is not an accounts package, it connects to yours. Shop floor devices need a wifi connection |
How to Pick From the Shortlist
Start with the problem, not the feature list. If your main pain is stock and purchasing, and you sell repeat products, MRPeasy or Katana will often do the job for less money. Both are good products, and we would rather tell you that than sell you something you do not need.
If you want to replace your accounts, CRM and manufacturing at the same time, look at WinMan, Odoo or SAP Business One. Be ready for a bigger project, because changing your finance system touches the whole business.
If you run high-mix, low-volume work and the real question is "where is that job, and did we make money on it?", you need the plan and the shop floor in one place. That is the gap DynamxMFG is built for. It keeps your existing accounts package and adds live tracking from the floor, so your MRP plan reflects what is actually happening.
Five Questions to Ask Every Vendor
- Can you show me the margin on a finished job without exporting to a spreadsheet?
- What happens to the plan when a BOM changes after the job is released?
- Which features in the demo are add-ons or a higher tier, and what do they cost?
- Who supports us in the UK, and is that you or a partner?
- If our order volume doubles next year, what happens to the bill?
Already using one of these and weighing a move? Read our fair comparisons of MRPeasy alternatives in the UK and Access FactoryMaster and WinMan alternatives, or see the side-by-side DynamxMFG vs MRPeasy page.
DynamxMFG
DynamxMFG bridges the gaps between your ERP, MRP and MES
Stop losing margin to unplanned overtime, scrap and manual admin. DynamxMFG turns the hours your team spends on spreadsheets into productive capacity, and goes live in 90 days rather than 12 to 18 months.
Live in 90 days
A UK team configures DynamxMFG around how your factory actually runs, then gets you live in 90 days.
Keep your ERP
DynamxMFG sits alongside Sage, Xero, QuickBooks and Business Central rather than replacing them.
Built for SMEs
No enterprise implementation programme and no in-house IT team required.
Questions
MRP software questions, answered
What is the difference between MRP and ERP?
MRP is focused on materials: what to buy and make, and when, based on demand and bills of materials. ERP is broader business management software covering finance, sales, purchasing and inventory, and often includes MRP as one module. MRP is a function; ERP is a system of record.
What is the difference between MRP and MES?
MRP plans what should happen and when. An MES records what is actually happening on the shop floor as it happens. MRP works from planned data and an MES works from live events, which is why manufacturers running only MRP often cannot see whether the plan is being met until after the fact.
Is MRP enough on its own?
For planning materials, often yes. For running production, usually not. MRP will tell you a job should have started on Tuesday, but not that it is still sitting at the previous operation. Most manufacturers fill that gap with spreadsheets, whiteboards or an MES.
Can I keep my MRP and add shop floor tracking?
Yes. DynamxMFG adds live execution and job costing alongside your existing planning and finance systems rather than replacing them, and integrates with Sage, Xero, QuickBooks and Microsoft Business Central.
Does MRP handle changes after a job is released?
Traditional MRP typically does not allow the bill of materials to be modified once a work order has been released. DynamxMFG supports dynamic BOM modification after release, which matters for bespoke and make-to-order work where the specification changes mid-build.
How long does MRP software take to implement?
It varies widely with scope. A full ERP with MRP typically takes 12 to 18 months. DynamxMFG is designed to go live in 90 days from kick-off because it targets the shop floor rather than replacing your whole finance system.
What is the best MRP software for manufacturing?
It depends on your product mix. For UK SME discrete manufacturers making to order, the best MRP software is one that handles BOM changes after release, works from accurate stock, and gets live progress back from the shop floor. A plan that cannot see the shop floor goes out of date within days.
Is there MRP software built for UK manufacturers?
Yes. DynamxMFG is built in Northampton for UK SME discrete manufacturers. It combines MRP with shop floor tracking, job costing and scheduling, integrates with Sage, Xero, QuickBooks and Business Central, and goes live in 90 days.
Does MRP software work with Sage or Xero?
Some does and some does not, so ask early. DynamxMFG integrates with Sage, Xero, QuickBooks and Microsoft Business Central, so your finance team keeps the system it already uses.
Which MRP software is best for a small UK manufacturer?
It depends on what you make. Product businesses selling repeat stock items often do well with MRPeasy or Katana. Firms replacing finance and CRM as well may prefer WinMan, Odoo or SAP Business One. High-mix, make-to-order manufacturers who need live shop floor tracking and job costing alongside MRP are the businesses DynamxMFG is built for.
Is cheap cloud MRP software good enough for a job shop?
It can be, if your main problem is stock and purchasing. Check how the system handles BOM changes after release, whether operators can record progress easily on the shop floor, and which features are add-ons or higher tiers before you compare prices.
Related reading
Read next
Background reading on MRP software from the DynamxMFG glossary and blog.
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