Custom Frappe Development for Africa
Bespoke applications built on the Frappe framework
We design and build custom Frappe applications from scratch — DocTypes, server scripts, client scripts, REST APIs, print formats, and complete web portals. Whether you need a standalone app or deep ERPNext customisation, we deliver production-ready code with tests and documentation.
What's included
DocType Design
Custom DocTypes with field validation, naming rules, and workflow states. We design your data model to be extensible, performant, and aligned with Frappe best practices.
Server & Client Scripts
Business logic that runs exactly where it should. Server scripts for data validation and automation, client scripts for real-time form behaviour and UX.
REST API Development
Whitelisted API endpoints with proper authentication, rate limiting, and error handling. We build APIs that external systems can rely on.
Custom Print Formats
Jinja-templated invoices, delivery notes, quotations, and reports styled to your brand. Multi-language support and PDF generation included.
Web Portals
Customer-facing portals built on Frappe's web framework. Self-service dashboards, form wizards, and public pages with role-based access.
Testing & Documentation
Automated test suites, API documentation, and developer guides. Every custom app ships with the documentation your team needs to maintain it.
Coale-CRM
Coale-Insights
Coale-Payments
What we build
Industry-Specific Apps
Custom modules for niche industries that off-the-shelf ERPNext cannot address out of the box. We have built apps for K9 unit management, fleet tracking, hotel PMS, and construction project billing.
- • Tailored DocTypes matching your industry terminology
- • Industry-specific workflows and approval chains
- • Compliance reports for sector regulators
ERPNext Customisation
Extending core ERPNext modules with custom fields, workflows, reports, and dashboards. We customise without forking core, so your instance stays upgradeable.
- • Custom fields and child tables on core DocTypes
- • Override controllers and server scripts safely
- • Custom reports, dashboards, and print formats
Integration Middleware
Connector apps that bridge ERPNext with external APIs — M-Pesa payment processing, eTIMS tax compliance, SMS gateways, and third-party logistics providers.
- • Webhook listeners and outbound API calls
- • Idempotent sync with retry logic and error queues
- • Real-time payment reconciliation
Migration Tools
Data migration scripts and tools for moving from legacy systems to ERPNext. We map, clean, transform, and import historical data so your go-live starts with complete records.
- • Schema mapping from source to Frappe DocTypes
- • Data validation and deduplication scripts
- • Rollback-safe import with audit trails
Frequently asked questions
What technology stack do you use for custom Frappe development?
We build exclusively on the Frappe framework (v14/v15) using Python for server-side logic, JavaScript for client scripts, and Jinja2 for print formats and web templates. All apps are packaged as standard Frappe apps installable via bench, and we use MariaDB for data storage and Redis for caching and queuing.
How long does it take to build a custom Frappe app?
Timelines depend on scope. A focused module with 5-10 DocTypes, basic workflows, and core APIs typically takes 4-8 weeks. Larger projects with complex integrations, web portals, and extensive print formats may take 3-6 months. We provide a detailed project estimate with milestones after a scoping session.
Do you provide maintenance and support after delivery?
Yes. We offer ongoing maintenance retainers that cover bug fixes, compatibility updates when Frappe or ERPNext versions change, minor feature additions, and technical support. Maintenance contracts are priced monthly based on the complexity of your apps.
Can you host the custom app on our own server?
Absolutely. Custom Frappe apps are self-hosted and can be deployed on any server running Frappe Bench -- your own VPS, a cloud provider like AWS or DigitalOcean, or our managed Frappe Cloud infrastructure. We handle deployment, SSL configuration, and production tuning as part of the delivery.
Who owns the source code of the custom app?
You do. All custom apps we build are delivered with full source code ownership transferred to you. We provide the code in a private Git repository, and you retain all intellectual property rights. We can optionally open-source your app under the MIT or GNU GPL licence if that aligns with your business goals.
Other ways we can help
ERPNext Implementation
Full-cycle ERP deployment — requirements gathering, configuration, data migration, training, and go-live support.
DevOps & Cloud
CI/CD pipelines, Docker orchestration, server hardening, and 24/7 monitoring. Your infrastructure, managed.
API Integration
Connect ERPNext to M-Pesa, KRA eTIMS, payment gateways, logistics APIs, and any third-party system.
Ready to build your custom app?
Tell us what you need. We will scope it, estimate it, and build it — on time, with tests.