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Case Study Energy & Utilities

Vendor Portal for Invoice Management & Procurement Automation

Sterlite Power

Key Challenges

Manual Invoice Processing

Invoice submissions relied heavily on manual processes, with vendors submitting documents via email or physical delivery. This email dependency created bottlenecks, lost documents, and significant delays in the payment cycle.

Fragmented Procurement Workflows

The Procure-to-Pay (P2P) and Invoice-to-Pay (I2P) workflows operated as disconnected processes, with no unified system linking purchase orders, goods receipts, invoice submissions, and payment approvals. This fragmentation led to duplicate efforts and reconciliation issues.

Processing Delays & Errors

Manual validation of invoices and procurement documents resulted in slow processing times and frequent errors. Data re-entry across systems introduced inaccuracies that cascaded through approval workflows.

Limited Vendor Visibility

Vendors had no real-time visibility into the status of their invoices or payments. This lack of transparency led to frequent follow-up calls and emails to the procurement and accounts payable teams, consuming valuable staff time.

Our Approach

Kansoft designed and built an integrated vendor management platform through a structured methodology:

  • Workflow Digitisation — Mapped the complete P2P and I2P workflows, identifying every manual touchpoint and bottleneck in the existing process.
  • Portal Development — Built a self-service vendor portal that enables vendors to manage their own submissions, track statuses, and access historical data independently.
  • Process Integration — Unified the previously disconnected procurement and invoicing workflows into a single, cohesive system with end-to-end traceability.
  • Automation Layer — Implemented automated validation, matching, and approval workflows to eliminate manual processing steps and reduce errors.
  • Scalable Design — Architected the platform to accommodate growing vendor networks, increasing transaction volumes, and evolving business requirements.

Solutions Delivered

Vendor Partner Portal

Built a centralized self-service portal where vendors can submit invoices, upload supporting documents, view purchase orders, track payment status, and manage their account details — all without contacting the procurement team.

Procure-to-Pay (P2P) System

Streamlined the entire procurement lifecycle from purchase requisition through order creation, goods receipt, and invoice matching. Automated workflows ensure each step flows seamlessly to the next with full audit trails.

Invoice-to-Pay (I2P) Automation

Automated the invoice lifecycle from digital submission through validation, three-way matching (PO, GRN, Invoice), approval routing, and payment processing. Configurable workflow rules handle exceptions and escalations automatically.

Real-Time Tracking

Delivered comprehensive status tracking for vendors and internal teams alike. Vendors see real-time updates on invoice status, expected payment dates, and any actions required, eliminating the need for follow-up communications.

Workflow Automation

Implemented rule-based automation for approval routing, exception handling, and notification management. Automated reminders and escalations ensure processing timelines are met consistently.

Key Integrations

  • Internal Procurement Systems — Connected to Sterlite Power’s existing procurement workflows for seamless purchase order and requisition management.
  • Finance & Accounts Payable Workflows — Integrated with finance systems for automated invoice validation, payment scheduling, and reconciliation.
  • Vendor Management — Linked to vendor master data for streamlined onboarding, compliance verification, and performance tracking.

Business Impact

  • Reduced processing time by digitizing manual invoice submissions and automating validation and approval workflows.
  • Improved accuracy through automated three-way matching and elimination of manual data re-entry across systems.
  • Enhanced vendor experience with a self-service portal providing real-time visibility into invoice and payment status.
  • Streamlined procurement by unifying P2P and I2P workflows into a single, integrated platform with end-to-end traceability.
  • Reduced overhead for procurement and accounts payable teams by eliminating routine follow-up communications and manual processing steps.

Why Kansoft

  • Enterprise Workflow Automation — Proven expertise in digitizing and automating complex enterprise workflows across procurement and finance functions.
  • Procurement & Finance Systems — Deep understanding of P2P and I2P processes, three-way matching, and vendor payment lifecycles.
  • Vendor Ecosystem Platforms — Experience building self-service portals that serve large, distributed vendor networks with varying technical capabilities.
  • Scalable Solutions — Architecture designed to grow with transaction volumes, vendor counts, and evolving business process requirements.
  • End-to-End Engineering — Full-stack delivery from requirements analysis through deployment and support, ensuring seamless integration with existing enterprise systems.

Client Overview

Sterlite Power, a leading power transmission infrastructure developer, manages a vast network of vendors and suppliers across multiple projects. Efficient procurement and payment processes are critical to maintaining operational continuity, but legacy systems created inefficiencies in vendor collaboration and financial workflows.

  • Industry Energy & Utilities
  • Technology Stack PHP Laravel, REST APIs, MySQL
  • Services Used Custom Software Development, API & Integration Development, Legacy App Modernisation, Dashboard Design & Development

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