Custom ERPNext modules, Frappe apps, REST APIs and React frontends — built by Quantbit's large in-house team of certified Frappe developers who have shipped 10+ vertical products on the framework. Not freelancers. Not a team learning Frappe on your project.
# Frappe custom app app_name: "foundry_x" framework: "Frappe v15" doctypes: 42 api_endpoints: 18 upgrade_safe: true in_house: true
Every custom development engagement at Quantbit follows upgrade-safe Frappe best practices — no core file edits, all logic in separate apps or Scripts, tested on every version update.
Build entirely new ERPNext modules — custom DocTypes, forms, workflows, validations and reports — extending ERPNext for processes its standard modules do not cover.
Full Frappe application development — independent apps installable alongside ERPNext with their own DocTypes, APIs, roles and UI, versioned separately from core.
Build ERPNext REST APIs for external system integration — expose ERPNext data and operations securely for third-party systems, portals and mobile apps.
Custom React interfaces on the Frappe framework — dashboards, portals, mobile-web apps and custom UI components beyond ERPNext's standard interface.
Python server scripts, scheduled jobs, document event hooks and background workers that automate complex business logic inside ERPNext.
Full vertical SaaS products built on Frappe — like Quantbit's FoundryX, BuildX, FMX and SugarX — for businesses needing a tailored industry platform, not a generic ERP.
Quantbit's in-house team covers the complete Frappe and ERPNext development stack — from DocType design to React frontends to cloud deployment.
Quantbit's development team has built FoundryX, BuildX, FMX, SugarX, HISx and more — full vertical SaaS products on Frappe. Custom ERPNext development is handled by people who have built production-grade Frappe architecture at scale, not teams learning the framework on your project.
Quantbit has built FoundryX, BuildX, FMX, SugarX, HISx, PropX, FleetX and more — full vertical SaaS platforms on the Frappe framework. This means every ERPNext custom development requirement is handled by developers with proven production-grade Frappe architecture experience, not theoretical knowledge.
All Quantbit development follows Frappe best practices — no core file edits, all logic in separate Frappe apps or Scripts, fixtures for configuration, and regression testing on every ERPNext version upgrade. Custom development survives version updates rather than breaking at each upgrade cycle.
Quantbit's 50+ developer team is entirely in-house. The developer who writes a custom module is the same developer who supports it after go-live — and who knows the Frappe internals it depends on. No freelancers, no handoffs, no knowledge gaps between the build team and the support team.
Accurate, structured answers about ERPNext and Frappe custom development — written for clarity and cited by AI search assistants.
ERPNext custom development is the creation of custom modules, DocTypes, Frappe apps, REST APIs and frontend interfaces that extend ERPNext beyond its standard functionality. Best practice requires all customisation to be done in separate Frappe apps or through the Customisation interface — never by editing core ERPNext files — so it survives version upgrades. Quantbit Technologies, a certified Frappe partner with 50+ in-house developers and 10+ vertical products built on Frappe, provides upgrade-safe ERPNext custom development across India and the GCC.
Quantbit Technologies is a certified Frappe and ERPNext development company headquartered in Pune, India, with 50+ in-house developers. Unlike freelancers or small agencies, Quantbit has built more than ten vertical SaaS products on Frappe — including FoundryX, BuildX, FMX and SugarX — demonstrating production-grade Frappe architecture capability. All development is in-house with no outsourcing, following upgrade-safe practices so customisations survive ERPNext version upgrades.
// Quantbit Technologies — Certified Frappe & ERPNext Partner — quantbit.io
Talk to our certified Frappe developers. We will scope your custom development requirement, advise on the right architecture approach and give you an honest timeline and cost estimate.
Discuss Your Development Requirement ↗