Solutions
Custom ERP Software Development
We build custom ERP systems and extend platforms like Odoo, NetSuite or Dynamics, so finance, inventory, purchasing and operations run on one accurate set of data.
ERP Software Built Around Your Operations
Enterprise resource planning systems connect the processes that keep a business running: finance and accounting, purchasing, inventory, warehousing, production, sales orders and reporting. Packaged ERPs such as SAP, Oracle NetSuite, Microsoft Dynamics 365 and Odoo cover standard processes well. Where companies struggle is the last mile: industry-specific workflows, local tax and invoicing requirements, unusual pricing or production logic, and integrations with the specialist systems they already rely on.
Hanoi Technology builds custom ERP software and ERP extensions. For some clients we deliver a modular ERP designed from scratch around their operations. For others we extend an existing ERP with custom modules, portals, mobile apps and integrations. Either way, we focus on one goal: a single, trustworthy record of orders, stock, costs and cash that every department can work from.
The Challenge
Common ERP Problems We Solve
Most ERP pain comes from gaps between the system and how the business really operates.
Spreadsheets Around the ERP
When the ERP cannot handle a pricing rule, a production step or an approval, teams track it in spreadsheets. Data diverges and month-end close becomes a reconciliation exercise.
Costly Over-Customization
Heavily modified packaged ERPs become difficult and expensive to upgrade. Each version update risks breaking custom code that nobody fully documented.
Disconnected Systems
Ecommerce, warehouse, shipping, payroll and banking systems exchange data manually or through fragile scripts. Errors in stock or invoices reach customers.
Slow, Limited Reporting
Managers wait days for reports that combine sales, inventory and finance data. Decisions about purchasing or pricing are made on outdated numbers.
Business Value
What the Right ERP Solution Delivers
One Source of Truth
Orders, stock, purchases and financial postings share the same data. Departments stop arguing about whose numbers are correct.
Processes That Fit
Workflows, approvals and calculations follow your business rules instead of generic defaults. Workarounds and side spreadsheets disappear.
Real-Time Inventory Visibility
Stock levels across warehouses and channels update as transactions happen. Overselling and emergency purchases decrease.
Faster Financial Close
Automated postings, reconciliations and integrations with banks reduce manual journal work. Finance teams close the month with less effort.
Modular Growth
New modules such as production, field service or multi-company accounting can be added as the business grows. You avoid replacing the whole system.
Better Decisions
Dashboards combine operational and financial data in near real time. Managers see margins, stock turns and cash position without waiting for reports.
Extend the Core, Customize at the Edge
For most mid-sized businesses the best ERP strategy keeps standard accounting and inventory logic close to proven patterns while building custom modules, portals and integrations at the edges. This keeps upgrades manageable and puts custom engineering effort where it creates a real operational advantage.
Our Services
Hanoi Technology’s End-to-End ERP Software Services
We deliver ERP projects from process analysis to long-term support.
ERP Discovery and Selection Support
We document processes, data flows and pain points, then compare packaged ERP options with a custom or hybrid approach. You receive a clear recommendation with scope, costs and risks.
- Process and data flow maps
- Option comparison
- Implementation roadmap
Custom ERP Development
We build modular ERP applications covering finance, purchasing, inventory, sales and production, with role-based access, audit trails and reporting. Architecture supports multiple companies, currencies and locations.
- Modular ERP application
- Role and approval configuration
- Audit trail and reporting
ERP Extensions and Custom Modules
We extend Odoo, NetSuite, Dynamics 365 Business Central and similar platforms with custom modules and apps. Extensions use platform-supported methods to protect upgrade paths.
- Custom modules
- Configuration documentation
- Upgrade-safe extension design
Integration With Business Systems
We connect ERP with ecommerce platforms, warehouse management, shipping carriers, banks, payroll, CRM and electronic invoicing services. Integrations include monitoring and error handling.
- Integration architecture
- APIs and connectors
- Monitoring dashboards
Data Migration
We migrate customers, suppliers, items, open orders, stock balances and opening financial balances from legacy systems. Trial migrations are reconciled with your finance team.
- Migration mapping
- Trial migration reconciliation
- Cutover plan
Portals, Mobile Apps and Analytics
We build customer and supplier portals, warehouse and field mobile apps, and dashboards on top of ERP data. Users get the information they need without full ERP access.
- Customer and supplier portals
- Mobile warehouse apps
- Management dashboards
Our Approach
How We Deliver ERP Projects
ERP projects succeed when business users are involved at every stage.
- 01
Map Processes and Data
We work with finance, operations, sales and warehouse teams to map current processes and identify pain points and requirements. Data quality in existing systems is assessed early.
Deliverables: Process documentation · Data quality assessment
- 02
Design the Solution
We design the module structure, data model, integrations and user roles. Prototypes of key screens are reviewed with users.
Deliverables: Solution design · Screen prototypes
- 03
Build and Configure in Phases
Modules are developed and configured in sprints with demos to key users. Integrations and migration scripts progress alongside.
Deliverables: Working modules · Integration builds
- 04
Test, Migrate and Go Live
We run user acceptance testing with real scenarios, conduct trial migrations and plan cutover around business calendars. Hypercare support follows go-live.
Deliverables: UAT results · Go-live and hypercare plan
- 05
Support and Evolve
After stabilization we continue with enhancements, new modules and integrations through a dedicated team or managed service.
Deliverables: Support process · Enhancement roadmap
Use Cases
ERP Solutions We Build
Examples of ERP projects shaped around specific operating models.
Multi-Warehouse Distribution
A distributor manages stock across several warehouses with barcode scanning, transfers and reorder points. Sales see available-to-promise stock when quoting.
Light Manufacturing
A manufacturer tracks bills of materials, work orders, material consumption and finished goods costing. Production planning uses real stock and open orders.
Ecommerce Order Operations
Orders from several online channels flow into the ERP for fulfillment, invoicing and returns. Inventory updates back to every channel automatically.
Project-Based Services
A services company tracks projects, timesheets, purchases and billing milestones in one system. Project managers see budget versus actual in real time.
Multi-Company Accounting
A group with subsidiaries in several countries manages intercompany transactions, multiple currencies and consolidated reporting. Local teams keep local tax requirements.
Supplier Portal
Suppliers confirm purchase orders, update delivery dates and upload invoices through a portal. Purchasing staff stop chasing confirmations by email.
Technology
ERP Technologies We Use
We work with leading ERP platforms and modern custom development stacks.
- Odoo
- Oracle NetSuite
- Microsoft Dynamics 365 Business Central
- SAP Business One
- .NET
- Java Spring Boot
- Python
- Node.js
- React
- Angular
- PostgreSQL
- Microsoft SQL Server
- RabbitMQ
- Docker
- Power BI
- Flutter
Platforms
Deliver ERP Software on Your Preferred Platform
Why Hanoi Technology
Why Organizations Choose Hanoi Technology
Senior, Cross-Functional Teams
Strategy, data, AI, cloud and engineering specialists work as one team, so nothing is lost between hand-offs.
Proven Delivery
More than 50 projects delivered for clients in North America, Europe and Asia-Pacific.
Radical Transparency
A written update every week and a demo of working software every sprint, so you always know where things stand.
Cost-Effective Global Delivery
Experienced engineers from our Hanoi delivery hub, with working-hour overlap for every major time zone.
Success Story · Logistics
Route optimization and fleet visibility for a regional logistics company
A regional delivery company handling thousands of shipments a day was planning routes and dispatching by hand. We built dynamic route optimization, a fleet dashboard and a driver app.
Read the Full StoryMore Success Stories
Food delivery
+58%total ordersAI dispatch and live tracking for a food delivery startup
A fast-growing urban food delivery startup was losing customers to slow deliveries at peak times. We built AI order dispatching and connected restaurants, drivers and customers in real time.
Resources
Featured Resources
Industry trends and practical guidance to help you get more value from data, AI and technology.
FSMA 204 After the Delay: Using Shipment Monitoring to Get Traceability-Ready by 2028
The FDA Food Traceability Rule deadline moved to July 2028, but the data work is large. Here is how to use shipment monitoring and event data to get ready without wasting the extra time.
CSRD After the Omnibus: What the Revised ESRS Mean for Reporting From 2027
The Omnibus and the simplified ESRS reshaped EU sustainability reporting in 2026. Here is who is in scope, what changed in the standards and how to adapt your data and process.
OpenTelemetry in 2026: Building a Vendor-Neutral Observability Strategy
OpenTelemetry has become the default way to collect telemetry. Here is what changed in 2026 and a practical roadmap for a vendor-neutral observability stack.
Run Your Operations on One Reliable System
Book a free consultation to discuss your ERP challenges and options. We reply within 24 hours and can help you compare custom, packaged and hybrid approaches.
ERP Software FAQ
Should we build a custom ERP or implement Odoo, NetSuite or SAP?
Packaged ERPs are usually the right foundation for standard accounting, purchasing and inventory, because they include tested logic and regular updates. Custom ERP development makes sense when your core operations are unusual, when packaged licensing is a poor fit for your size, or when you need deep integration with your own products. Many clients choose a hybrid: a packaged core plus custom modules, portals and integrations.
How much does ERP software development cost?
Cost depends on the number of modules, business rules complexity, number of companies and locations, integrations, data migration effort and reporting requirements. A focused system covering orders, inventory and invoicing is much smaller than a full suite with production and multi-company accounting. We estimate after discovery and recommend phasing so you see value early and spread investment over time.
How long does an ERP project take?
A focused ERP extension or a core custom module set may go live in a few months, while broader implementations with many integrations and departments take longer. Timelines depend heavily on data readiness and the availability of key users for testing. We plan go-live around your business calendar, avoiding peak seasons and financial year-end where possible.
How do you avoid disrupting operations during go-live?
We run several trial migrations, reconcile balances with finance, train users with realistic scenarios and agree a detailed cutover plan with fallback steps. Many projects go live in phases by module, site or company rather than all at once. Our team provides hypercare support immediately after go-live to resolve issues quickly.
Can you integrate the ERP with our ecommerce and warehouse systems?
Yes. We build integrations with ecommerce platforms, marketplaces, warehouse management systems, shipping carriers, payment providers, banks and electronic invoicing services. Integrations are designed with retries, logging and alerts, so failed transactions are visible and can be corrected rather than lost. We document each data flow for your team.
Who owns the ERP code and data?
For custom development, you own the code we write for you and all your business data, as defined in our contract. For extensions on packaged ERPs, you own your custom modules while the platform itself remains under the vendor’s license. We provide documentation and can hand over to your internal team or continue with a dedicated team or managed service.