E-Invoice for Malaysian Leading Telecom Company

E-Invoice for Malaysian Leading Telecom Company

Industry: Telecommunication Services & Internet Technology Services
Region: Malaysia

Overview

Our client, one of Malaysia’s largest telecom providers, delivers mobile, broadband, corporate, and SME services with over 93% nationwide coverage. As part of the government’s e-Invoicing mandate—which requires real-time validation for B2B, B2C, and B2G transactions—the company needed to transition seamlessly from legacy manual invoicing to a fully compliant digital architecture.

Build NYC Tech developed a high-performance e-Invoicing platform that automates invoice generation, validation, and submission to the Inland Revenue Board of Malaysia (LHDN) within strict government latency requirements. Built for enterprise scale, the system processes around 300,000 invoices daily (handling approximately 85 GB of data) while ensuring 100% compliance through real-time field mapping and validation of critical taxpayer records.

Challenges

  • Digital workflow transformation: Transitioning from legacy manual invoicing to automated systems required a major operational redesign and change management strategy without disrupting ongoing services.
  • External system integration: Establishing complex, low-latency API connections with core enterprise systems like SAP was required while simultaneously maintaining a reliable data flow to LHDN.
  • Data integrity and synchronization: Ensuring perfectly consistent, synchronized data across disparate internal and external systems was critical to eliminate invoice rejections and compliance penalties.
  • UBL data transformation: Converting massive, raw telecom transaction data into LHDN-compliant JSON and XML formats required zero-error field mapping and complex validation logic.
  • Platform interoperability: Differing data formats, architectures, and communication protocols across older ERP systems caused severe compatibility and processing bottleneck challenges.
  • Regulatory compliance enforcement: Meeting strict government-mandated structures, security protocols, and real-time reporting timelines presented significant legal and financial risks if left unautomated.
  • Regulatory change management: Frequent structural updates from LHDN made it practically impossible to keep internal billing systems aligned via manual adjustments.
  • Limited e-Invoicing literacy: Internal operational and financial teams lacked deep knowledge of the new government standards, structural workflows, and technical compliance prerequisites.

Solutions

  • Automated workflow system: Engineered an automated end-to-end invoice generation, approval, and submission pipeline, natively integrated with Google BigQuery to handle large-scale data processing effortlessly.
  • Robust API integration: Developed highly secure APIs and a semi-flow-through submission engine equipped with real-time error handling, centralized logging, and instant status tracking.
  • Data validation pipeline: Implemented a dedicated data sanity pipeline that pre-validates and synchronizes transactional records to ensure high-fidelity data before it ever hits the government portals.
  • UBL transformation engine: Designed highly efficient ETL (Extract, Transform, Load) processes to dynamically generate compliant JSON and XML files with automated validation of all mandatory fields.
  • Middleware interoperability layer: Built a highly scalable e-Invoicing engine using Go (Golang) to unify and streamline data exchange across multiple legacy and modern ERP systems.
  • Compliance automation: Embedded strict pre-submission validation checks that systematically audit all required parameters—such as Tax Identification Numbers (TIN) and customer data—against current LHDN standards.
  • Adaptive compliance system: Programmed persistent monitoring and dynamic update mechanisms to automatically adjust processing workflows whenever LHDN alters its technical regulations.
  • Training and knowledge base: Delivered exhaustive documentation, interactive e-learning modules, and hands-on training sessions to ensure internal teams could effectively adopt, operate, and manage the system.