A custom ERP that runs your operations from one place.
Orders arrive in one tool, stock lives in another and invoicing waits for someone to copy the numbers across. A custom ERP brings them into one system built on your own flows. AI reads the orders and documents that still arrive by email, and a person approves what it prepares.
Purchase order received
Sofia M., purchasing
Please find attached our purchase order PO-7781 for 60 units of ref. T-40, to be delivered to our second site.
- 10:05:02Read the attached purchase order. PO-7781, 60 units of T-40, second delivery address.
- 10:05:03Checked stock and production. 42 in stock, 18 scheduled on Thursday’s run.
- 10:05:05Created sales order 3120 with a split delivery proposal.
- 10:05:06Reserved the stock and linked the 18 units to the production order.
- 10:05:07Prepared the confirmation and the invoices to issue at each shipment.
Split delivery: waiting for your approval. The ERP prepares the order. A person confirms the delivery terms to the customer.
What is a custom ERP, and when does it make sense?
A custom ERP is enterprise resource planning software built around one company’s operations: orders, purchasing, stock, production or services, and invoicing, all sharing one database. It makes sense when packaged ERPs force costly workarounds, or when your flows are specific enough that a package would need heavy customization anyway.
A custom ERP rarely replaces everything at once. We start with the module that hurts most, such as order handling or production planning, and connect it to the accounting software you keep. Other modules follow once the first one has proven itself.
The flip side is real: you carry the upkeep of your own system. That is why we use mainstream technology that any competent team can take over, and hand over the code with its documentation.
An ERP your company can keep for years, with or without us.
Security and dataMainstream technology.
Common languages and databases, so any competent team can maintain the system.
The code is yours, with no license to pay.
Repository, documentation and deployment scripts are handed over.
Accounting stays where it is.
We connect to your accounting and payroll software and leave it in charge of what tax and labor rules require.
Every change traced.
Who changed a price, a stock level or an order, and when.
Tested at every release.
Automated tests run on the flows that matter before each new version goes live.
Where a custom ERP earns its keep.
Three scenarios, shown as such: situations where a packaged ERP tends to force workarounds, and what a custom one does instead.
Made-to-order production
BeforeEach order is a small project, and the ERP only knows catalog items.
AfterOrders, bills of materials and production steps modeled on the way your workshop really runs.
A services company with field teams
BeforeJobs planned in one tool, reported on paper and invoiced from a third.
AfterPlanning, job reports and invoicing in one flow, from the technician’s phone to the invoice.
Distribution across several channels
BeforeOrders from EDI, email, the website and sales reps, entered four different ways.
AfterOne order flow whatever the channel, with orders read from emails and PDFs and checked before they count.
Custom ERP or packaged ERP: how to decide?
For standard operations, a packaged ERP is often the better deal, and we will tell you. The comparison below shows where the line falls.
| Criterion | Custom ERP | Packaged ERP | Packaged ERP, heavily customized |
|---|---|---|---|
| Fits your flows | Built around them | Standard flows, configurable | Through specific development |
| First module in use | One module at a time | Standard modules first | After the customization project |
| Upgrades | On your schedule | Vendor versions, included | Each upgrade can break the customization |
| Licenses | None, you own the code | Per user or per module | Per user or per module, plus upkeep of the custom code |
| Accounting and payroll | Connected to the software you keep | Often included | Often included |
| Best for | Specific operations that set you apart | Standard operations, set up fast | Mostly standard flows with a few exceptions |
Your custom ERP, one module at a time, at your pace.
Before any build
Map the flows
From the order to the invoice, we follow your flows, list the exceptions and choose the first module. Scope and price are fixed in writing.
First module
Built and used
The module that hurts most is built, connected to your accounting and used on real orders before the next one starts.
Next modules
Added once trusted
Each module comes in when the previous one has earned your team’s trust. You set the pace.
Over the years
Run it, or take it back
We maintain and evolve it, or hand the code and documentation to your own team.
What the price of a custom ERP depends on.
A custom ERP is priced module by module. The first one, often order handling connected to your accounting, is budgeted in writing before it starts. The next ones are priced the same way, once the first has proven itself.
Read the custom software cost guide, with market ranges- 01The number of modules, and which one comes first.
- 02The complexity of your flows and their exceptions.
- 03The systems to connect: accounting, EDI, website, carriers.
- 04The data to take over from current tools.
- 05The number of users, sites and roles.
- 06The AI features, such as reading orders and checking documents.
Custom ERP: the questions buyers ask us
Is a custom ERP more expensive than Odoo or another package?
It depends on the horizon. A package costs less to start when your flows are standard. When it needs heavy customization and a license for every user, a custom ERP built module by module can cost less over the years. The cost guide gives market ranges.
Can we keep our accounting software?
Yes, and we recommend it. The ERP sends invoices and journal entries to your accounting software, which keeps handling what tax rules and your accountant require. Your finance team keeps the tool it knows, and nobody retypes an invoice.
Do we have to replace everything at once?
No. We start with one module, such as orders or planning, connected to what you already run. The next module comes once the first one is trusted, so your operations never depend on a single big switch-over weekend.
Can AI enter orders in the ERP?
It can read purchase orders that arrive by email or PDF, match references and customers, and prepare the order. A person approves before it counts. You can try the extraction on sample documents in our live demo.
Who maintains the ERP?
You choose: we maintain and evolve it under a support agreement, or your own team does, trained on the code and working from its documentation. The code, the database and the deployment scripts are yours in both cases.
What if our company changes?
The ERP changes with it. A new site, a new channel or a new product line becomes a new module or rule, added on your schedule instead of waiting for a vendor roadmap.
Before the ERP, or next to it
- Custom software development Everything we build around your processes.
- Custom CRM When the sales side needs its own tool, connected to the ERP.
- Business applications When one process needs its own application first.
- Document extraction demo Watch documents turn into structured data, field by field.
- Custom software cost guide Market ranges, sourced and dated.
Run your whole operation from one system built for it.
Walk us through an order, from the moment it arrives to the invoice. We reply within one business day to book your free 30-minute assessment, and tell you which module to start with, or whether a package would do.