ERPNext Development & Integration
Custom extensions, API integrations, and seamless embedding into your system landscape.
Standard software often covers 90% – we close the last gap. We develop Frappe Apps, connect ERPNext with your tools, and automate workflows.
Our Development Services
From API integration to complete custom solutions – we cover the entire spectrum.
API & Interface Integration
We make your systems talk to each other. Whether REST, GraphQL, or webhooks – we connect software with your CRM, ERP, or identity provider.
- Bidirectional data synchronization
- Third-party system connections
- Custom webhooks & event handlers
- Legacy system integrations
Custom Middleware & Logic
Often data formats from System A don't match System B. We develop middleware that sits in between, transforms data, and controls processes.
- Transformation layer (ETL)
- Data stream validation
- Caching layer for performance
- Microservices architecture
Embeddings & Custom Apps
Want to use software features in your own intranet or customer portal? We embed software headlessly and build custom UIs around it.
- White-label integration
- Custom dashboards (React/Vue)
- UI extension via plugins
- Mobile app customizations
Automation & Bots
Save manual work through intelligent automation. We develop bots and scripts that handle tasks automatically.
- ChatOps & slash commands
- Automated reporting
- Workflow orchestration
- Trigger-based actions
Low-Code & Full-Code Framework
ERPNext is based on Frappe, a brilliant metadata-driven framework. We use this for quick adjustments but don't shy away from developing complex business apps as standalone Frappe apps.
Server Scripts & Client Scripts
For logic adjustments, we use Server Scripts (Python) to perform validations or calculations in the backend, and Client Scripts (JS) for dynamic UI behavior.
Document Hooks
We hook into the document lifecycle (Before Save, On Submit). This allows us, for example, to automatically create external shipping orders upon order receipt.
Custom Frappe Apps
We strictly separate your custom code from the core. We package your adjustments into a separate app installed alongside ERPNext. This guarantees stress-free updates.
Concrete Use Cases
How we implement ERPNext development in practice.
Industry-Specific DocTypes
A laboratory needs data fields (sample ID, temperature) that do not exist in any standard ERP.
Creation of Custom DocTypes incl. relations and logic. These behave like native ERP objects (searchable, filterable, API-ready).
External API Integration
Data from an external fleet management system must be available in ERPNext for billing.
A scheduled job (Python) regularly polls the external API, maps the data, and automatically creates 'Delivery Trips' in ERPNext.
Jinja Print Formats
Delivery notes must contain barcodes for warehouse scanners and have a specific layout.
Development of HTML/Jinja templates that dynamically generate barcodes and conditionally format data (e.g., hazardous material warnings).
Development with Foresight
Update-safe, scalable, and secure – why you should trust us with your development.
Update-safe (No Core Hacking)
We don't modify the open-source software's source code. Instead, we use official APIs and plugin architectures. Your installation remains updatable and maintainable.
Full-Stack Expertise
We understand not just the code, but the infrastructure beneath it. Our developers know how queries affect database performance and how to build scalable APIs.
Modern Tech Stack
We use modern, type-safe technologies: React, TypeScript, Node.js, Python, Go. Plus PostgreSQL, Redis, and Docker/Kubernetes for infrastructure.
Security by Design
Every line of code is written with security in mind. Input sanitization, secure authentication (OAuth2/OIDC), and compliance with data protection regulations are standard.
Our Tech Stack
How We Work
From requirements to go-live – transparent and structured.
Analysis
We review API documentation, analyze your requirements, and identify optimal integration points.
Architecture
We design the solution: middleware, plugin, or script. Data flows, interfaces, and security concept are defined.
Development
Agile implementation with code reviews, automated tests, and continuous coordination. You see progress in real-time.
Deployment
Integration into your CI/CD pipeline or hosting on our infrastructure. Documentation and training included.
Planning a custom extension?
Let's get technical. We'll assess feasibility and effort.
More Services
Discover all ERPNext services from WZ-IT.
Industry-leading companies rely on us
What do our customers say?
Let's Talk About Your Idea
Whether a specific IT challenge or just an idea – we look forward to the exchange. In a brief conversation, we'll evaluate together if and how your project fits with WZ-IT.
Trusted by leading companies
Timo Wevelsiep & Robin Zins
CEOs of WZ-IT