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ERPcustom erp software development

Custom ERP software development, shaped around how you work.

Founcy Solutions' custom ERP software development starts by mapping your real workflows. Then, module by module, we decide with you whether to build, extend an open platform like Odoo or ERPNext, or buy. Finance, inventory and operations ship in phases, with role-based access, audit trails and clean data flowing to every system that depends on it.

Map my ERP project → What's included
  • build, extend or buy
  • phased go-lives
  • reconciled data migration
erp.modulesillustration
  • role views: finance, inventory, sales
  • each role sees only its modules and approvals
  • price and stock pushed to the website on change
roles with segregation of dutiesaudit trail on every postingevents to web + feeds
definition

What is custom ERP software development?

Custom ERP software development is the design and build of an enterprise resource planning system around your own processes, rather than reshaping your processes to fit a package. It covers the modules that run the business (finance, inventory, purchasing, sales, manufacturing, HR), the data model that ties them together, the permissions that keep them safe, and the integrations that feed other systems. In practice, the strongest results often come from a hybrid: keep a proven ledger, and build or extend the operational layer where your processes are genuinely different.

Modules
Finance, inventory, procurement, sales, manufacturing (MRP) and HR
Approach
Build, extend Odoo, ERPNext or Business Central, or a hybrid of both
Delivery
Phased, module by module, with a parallel run before each cutover
Your data
Code in your repository and full data export, with no lock-in
sound familiar?

Signs you've outgrown your back office.

Pick whatever applies. We'll use it to decide where phase one should start.

Tap anything that sounds familiar.

what's included

Custom ERP development services, from ledger to loading dock.

We start with the area causing the most pain, prove it in production, then extend. Each phase is useful on its own.

01

Process mapping

Workflows mapped as they really run, and an honest build, extend or buy call for each module.

02

Data model & roadmap

One model for products, customers, stock and money, with a module order that starts where it hurts.

03

Access control

A role matrix with segregation of duties and an audit trail on every posting and approval.

04

Core modules

Finance, inventory, purchasing, sales or production, built and tested with the people who use them.

05

Integrations

Accounting, e-commerce, CRM, payroll, shipping, banking and EDI, with retries and alerts.

06

Data migration

Trial migrations and reconciliation reports that finance signs off before anything goes live.

07

Reporting

Dashboards and BI on clean data, in Power BI, Metabase or built in.

08

Rollout & hypercare

Training, user acceptance testing, go-live support and planning for the next phase.

engineering first

Your ERP should never rank. Its data should.

The ERP itself sits privately behind sign-in. But it's usually the source of truth for the prices, stock and product data that appear on your website, in Product structured data and in Merchant Center feeds. Nightly CSV syncs let those drift, and mismatched feeds can get products disapproved. We sync on change instead.

data integrity: hoped for
Starting pointPick a package, then bend your processes to fit itMap processes first, then choose build, extend or buy per module
Go-liveOne big-bang weekend for everythingModule by module, with a parallel run before each cutover
Data migrationA single import and crossed fingersTrial migrations with reconciliation reports signed off by finance
AccessShared logins and broad admin rightsLeast-privilege roles, segregation of duties and a full audit trail
Website & feedsNightly CSV exports, stale prices and stockEvent-driven sync to the storefront, structured data and product feeds
UpgradesCustomisations nobody dares touchExtensions kept apart from core, with upgrade tests in the pipeline
how it works

Phased, so the business never stops.

Each phase ends with a module in real use, not a status report.

  1. 01

    Discover

    Map processes end to end, audit the data you have, and decide build, extend or buy for each area.

    → module decision record
  2. 02

    Design

    Data model, integration map, permissions matrix and a module roadmap ordered by business pain.

    → approved architecture
  3. 03

    Build in phases

    Module by module, with the people who'll use each one testing every release.

    → working module on staging
  4. 04

    Migrate & verify

    Trial migrations, reconciliation against the old system, then a parallel run until the numbers agree.

    → signed reconciliation
  5. 05

    Roll out

    Training, go-live, a hypercare period for quick fixes, then planning for the next module.

    → module live, next phase planned
stack

Build on proven ground where you can.

// build
.NET 10ASP.NET CorePython / DjangoNode.js
// extend or integrate
Frappe / ERPNextOdooBusiness CentralNetSuiteSAP Business One
// data & reporting
PostgreSQLSQL ServerPower BIMetabase
// integration
REST / GraphQLWebhooksMessage queuesEDI (X12 / EDIFACT)Entra ID SSO
what drives the cost

What does custom ERP development really cost?

Any honest answer starts with these four. Set them and see which kind of programme you're planning.

Modules in scope

Each module brings its own workflows, rules and reports.

Integrations

Banking, EDI and e-commerce links each need mapping and failure handling.

Data to migrate

Years of history across several systems means more reconciliation.

Entities & compliance

Multiple companies, currencies or audits add rules and testing.

keep exploring

Related services.

PRT

Web portals

Vendor and dealer portals on top of your ERP data.

Explore → API

API development

Integration APIs that keep every system reading the same numbers.

Explore → MOD

Application modernisation

Replace a legacy ERP in phases, without stopping the business.

Explore → CLD

Cloud applications

Host your ERP in the cloud with tested backups and recovery.

Explore →
faq

Custom ERP questions.

Packages handle standard accounting and HR well. Build or extend where your processes are a genuine edge, like how you quote, produce or fulfil. A hybrid is common: keep a proven ledger and build the operational layer around it.
The number of modules and workflows, the integrations, and the volume and quality of the data being migrated. Users and roles, audit or compliance requirements, mobile or offline use, and training all add to it. We give an estimate after discovery, not before.
Phased delivery puts the first module into daily use well before the whole system is finished. The total timeline depends on scope. A parallel run adds time to each cutover but takes most of the risk out of go-live.
Often, and it's usually faster. The trade-offs are upgrade discipline for your customisations and licence terms: Odoo Community is LGPLv3, ERPNext is GPLv3, and Odoo Enterprise is commercial. We'll lay these out per module.
You should own both: the code in your own repository, IP assigned to you, and a full data export available whenever you want it, with no lock-in. Ownership terms are written into the agreement before work starts.
SSO with MFA, least-privilege roles, segregation of duties and audit logs on every posting. Data is encrypted, backups and disaster recovery are tested on a schedule, and the system is penetration-tested before go-live.
Because the ERP usually feeds the prices, stock and product data your website and shopping feeds display. When that data lags, product pages and feeds disagree, and shopping listings can be disapproved. An event-driven sync keeps them consistent.
start with one module

Start where it hurts. Grow from there.

Tell us which process is costing you the most. We'll map it, recommend build, extend or buy, and outline a first phase you can put to work quickly.

https://

quote within 24 hours · build, extend or buy, decided honestly · phased go-lives