LH OneApp – Unified ERP + CRM Super App for Lafarge Holcim
LH OneApp is an enterprise-grade hybrid ERP-CRM super app developed for Lafarge Holcim. It unifies over 10+ fragmented business apps—spanning order management, logistics, CRM, dealer-retailer onboarding, and inventory tracking—into a single, secure platform. The app was built from scratch and now powers the daily operations of 250+ internal employees and 5,000+ approved customers, with deep Salesforce integration for real-time insights and decision-making.
Timeline
November 2022 - May 2023
Client
Lafarge Holcim Bangladesh Ltd.
Role
Mobile Application Team Lead (via Leveor)
Project Goals
Lafarge Holcim was operating multiple siloed applications for managing different stages of its sales and logistics pipeline. The goal was to:
- •Consolidate these into “OneApp” — a single app for all operations
- •Streamline internal workflows (order placement, delivery tracking, approvals)
- •Provide an easy interface for dealers and customers to place, track, and dispute orders
- •Enable real-time visibility across departments using Salesforce
My Role
As the Mobile Application Team Lead from Leveor, I worked under a PM and led the mobile app development for Berger Tech Consulting Ltd., delivering the entire Flutter-based solution for Lafarge Holcim. My responsibilities included:
- •Leading the mobile app development team and coordinating with backend developers
- •Designing the app architecture and implementing key features
- •Integrating with Salesforce for real-time data sync
- •Ensuring high performance, security, and scalability of the app
- •Conducting user acceptance testing (UAT) and gathering feedback
- •Training internal teams on app usage and best practices
Challenges & Solutions
Challenges
- •Integrating with Salesforce for real-time data sync and ensuring data integrity across platforms
- •Designing a user-friendly interface that accommodates diverse user roles (internal staff, dealers, customers)
- •Ensuring high performance and responsiveness for a large user base
- •Implementing robust security measures to protect sensitive business data
- •Managing complex workflows and approvals within the app
Solutions
- •Developed a modular architecture to support multiple business functions within a single app
- •Implemented secure authentication and role-based access control to protect sensitive data
- •Utilized Flutter's capabilities to create a responsive and intuitive UI for different user roles
- •Integrated with Salesforce using REST APIs for real-time data sync and reporting
Results
- •Successfully launched the LH OneApp, consolidating over 10+ fragmented business apps into a single platform
- •Streamlined internal workflows, reducing order processing time by 30%
- •Enabled real-time visibility across departments, improving decision-making and operational efficiency
- •Onboarded 5,000+ approved customers, enhancing customer engagement and satisfaction
- •Received positive feedback from internal teams and customers for ease of use and functionality