Custom Erp Development

About this Service

UITOP designs and develops custom ERP software around inventory, orders, work operations, financial records, reporting, user roles, and other connected business workflows.

We work with companies and product teams that need a dedicated operational system because their processes span several tools, spreadsheets, legacy applications, or specialized business workflows.

The first step is understanding how the business operates today. We map the records involved, the people responsible for each stage, workflow states, approvals, business rules, exceptions, reporting requirements, and systems that exchange data with the ERP.

That operating model shapes the software architecture.

An inventory record may connect to a warehouse location, customer order, purchase activity, shipment, work order, cost, or financial transaction. The ERP needs a clear data model for these relationships so product workflows and reporting use the same underlying business information.

UITOP can work across ERP product architecture, UX/UI design, frontend and backend development, databases, APIs, integrations, QA, and phased implementation within the agreed scope.

What You Get

  • ERP discovery and requirements analysis

  • Current business-process mapping

  • Target workflow definition

  • ERP module and scope planning

  • Business-object and data-model definition

  • User roles and permission mapping

  • Workflow states and business rules

  • Approval and exception-flow definition

  • Product architecture and information architecture

  • UX/UI design for operational workflows

  • Responsive web application design

  • Frontend development

  • Backend development

  • Database implementation

  • REST API development

  • Third-party integrations

  • Inventory and warehouse workflows where required

  • Order and work-order workflows

  • Purchasing and supplier-related workflows where included

  • Financial and accounting workflows where included

  • Operational dashboards and reporting

  • Search, filters, tables, forms, and detail views

  • Audit and record-history interfaces where required

  • Loading, empty, error, permission, pending, and exception states

  • Data migration planning within agreed project scope

  • Functional and technical QA

  • Engineering documentation

  • Release and continued development support where included

ERP Areas We Work With

Depending on the business and project scope, an ERP engagement can include:

  • Inventory management

  • Warehouse and location management

  • Orders and fulfillment

  • Work orders

  • Purchasing

  • Supplier records

  • Shipment and logistics data

  • Project operations

  • Financial records

  • Invoicing and payments

  • Accounts receivable and accounts payable

  • Reporting

  • Operational dashboards

  • User and permission administration

  • Business approvals

  • Record history and audit-related states

  • Integrations with existing business systems

The module set depends on the actual operating model and available project evidence.

What Custom ERP Development Needs to Define

Business Processes

Which operational processes belong inside the ERP? We map how records enter the system, which users work with them, what actions they perform, and what determines the next workflow state.

Shared Data Model

ERP modules frequently use the same business information. Customers, products, SKUs, locations, vendors, orders, invoices, work orders, payments, or assets may connect across several workflows. The data model needs to define these relationships before individual modules are implemented.

Roles & Permissions

ERP users can include administrators, operations managers, warehouse teams, accounting staff, project teams, executives, and external users. We define what each role can view, create, edit, approve, export, or administer within the selected scope.

Workflow Rules

Operational software needs defined rules for status transitions, approvals, validations, dependencies, calculations, and required information. These rules guide both product behavior and backend logic.

Exceptions

ERP workflows also need states for missing records, rejected approvals, stock conflicts, incomplete information, delayed integrations, validation failures, and other operational exceptions included in scope.

Integrations

The ERP may exchange information with accounting platforms, CRMs, shipping providers, banking systems, procurement tools, existing databases, or industry-specific services. We map the records exchanged, system responsibilities, update behavior, and user-facing integration states.

Reporting

Reports and dashboards depend on the same operational data used by the workflows. We define which records, time periods, filters, calculations, and permissions support each reporting requirement.

Migration

For an existing business, implementation may require moving data from spreadsheets, legacy software, or another ERP. Migration scope needs clear source mapping, validation rules, record ownership, and testing before release.

Who This Is For

This service is a good fit for:

  • Companies replacing several disconnected operational tools

  • Operations teams whose workflows have outgrown spreadsheets

  • Businesses building an ERP around specialized internal processes

  • Product teams developing industry-specific ERP software

  • Companies adding custom operational modules to an existing software environment

  • Businesses that need inventory, orders, work activity, reporting, and financial records connected

  • CTOs planning a custom business system

  • Operations leaders defining a phased ERP modernization

  • Existing ERP products that need new modules or deeper workflow support

  • Teams that need product design and engineering across the same ERP scope

How We Work

1. Business & System ReviewWe review current processes, tools, user roles, operational records, known issues, reporting requirements, technical environment, and integration constraints.

2. Workflow & ERP ScopeWe define which workflows and modules belong in the current phase, along with roles, records, actions, states, approvals, rules, and exceptions.

3. Data & Product ArchitectureWe map business objects, relationships, information architecture, frontend requirements, backend responsibilities, database structure, and API contracts.

4. UX/UI DesignWe design the selected operational workflows, tables, forms, dashboards, record views, administration areas, reports, and important states.

5. Frontend & Backend DevelopmentUITOP implements the approved scope across interface behavior, application logic, database operations, APIs, and required integrations.

6. Migration, QA & Workflow TestingWhere migration belongs to the scope, we validate source data and mappings. We test workflows, permissions, calculations, integrations, reports, and exception states.

7. Release & ERP ExpansionWe prepare the agreed phase for release and can continue with additional modules, workflows, integrations, or modernization work.

What You Can Expect

Process-Led ERP Scope

The project begins with operational workflows and shared business records so modules reflect how the company works.

Connected Product & Data Structure

Interfaces, backend logic, database relationships, and reporting use the same defined business model.

Role-Aware Workflows

The product can reflect different responsibilities and access rules across operations, finance, warehouse, management, and other roles included in scope.

Operational Exception Coverage

Important failures, missing information, blocked actions, and approval states are defined as part of the workflow.

Integration Context

The project maps how the ERP exchanges information with existing tools and what users see when external data changes or fails to update.

Phased Delivery

Large ERP systems can be divided into operational phases so a defined workflow or module set can be designed, developed, tested, and released before the next scope begins.

Technology

Technology depends on the ERP requirements and existing technical environment. UITOP development work includes:

  • React

  • TypeScript

  • Vite

  • Tailwind CSS

  • Zustand

  • Node.js

  • Express

  • PostgreSQL

  • Prisma ORM

  • REST APIs

  • Third-party integrations

  • CI/CD workflows

  • Automated testing and QA

For existing business software, UITOP can work with the current technical environment when it fits the agreed project scope.

Experience With ERP & Operational Systems

UITOP designed and developed Valocore, an operational financial system for U.S. government contractors.

The platform connects invoicing, payment tracking, accounts payable, reporting, income statements, balance sheets, and contract-related financial workflows inside one software system.

UITOP also designed and developed LogiCore, a logistics and warehouse platform connecting shipment tracking, warehouse structures, SKU management, multi-location inventory, and operational reporting.

The engineering work covers frontend development, backend architecture, PostgreSQL data operations, REST APIs, inventory relationships, warehouse data, and performance for large operational datasets.

Slabstack provides additional ERP product-design experience in heavy construction materials.

UITOP redesigned the existing platform around operational dashboards, projects, company records, reporting, activity, and reusable interface patterns. We treat Slabstack as ERP UX evidence, not as a UITOP development case.

The listed price covers a focused custom ERP development phase built around an agreed workflow or connected module set.

Final scope depends on:

  • number of ERP modules;

  • operational workflows;

  • business-object and data-model complexity;

  • number of user roles;

  • approval and permission rules;

  • frontend and backend requirements;

  • integrations;

  • migration volume and data quality;

  • reporting requirements;

  • existing software environment;

  • QA and release requirements.

Large ERP platforms are planned as sequential implementation phases.

Planning a custom ERP or modernizing an operational system?

Share the workflows, current tools, and modules you need to connect, and we can define the ERP development scope around the users, records, rules, integrations, and data involved.

$22,400
Quick Hire
Concepts and revisions: 5 concepts, 5 revisions
Project Duration: 3 months