Case Studies

What we’ve shipped.

A representative cut of engagements across HR, Tax, Travel & Expenses, Data engineering, and Managed services. Client names are withheld where we don’t have written permission to disclose them — every sector, scope, and outcome below is real and drawn from work we delivered.

Travel & Expenses
A high-growth fintech
Financial services

A scale-stage fintech had grown to 5,000+ employees on three different expense tools and a long tail of spreadsheets. Field collections couldn’t pause; hiring couldn’t slow. The CFO wanted one platform, one GL feed, and a reimbursement cycle measured in hours, not weeks — and the rollout couldn’t look or feel like an enterprise IT project.

  • End-to-end Happay rollout in under 8 weeks
  • Expense cycle compressed from 14 days → 48 hours
  • Zero downtime to field collections during go-live
HappaySmelterOODA
Tax & Regulatory
A diversified manufacturer
Heavy engineering & manufacturing

A diversified manufacturer ran three SKUs of business across eight plants, each generating thousands of invoices per day. GST e-invoicing and e-way bill compliance was being held together by a controller’s team spending two-thirds of every month on reconciliation. The penalty exposure was real; the burnout was visible; the existing tax tooling had not been wired correctly to the ERP.

  • Real-time IRN + e-way bill generation across 8 plants
  • Manual reconciliation hours reduced by 80%+
  • Zero compliance breaches in 4+ quarters
ClearTaxIRISSmelterOracle
Tax & Regulatory
A water infrastructure manufacturer
Water treatment & infrastructure

GST compliance ran on two parallel manual tracks — e-invoicing on one, e-way bills on another — with invoice data lifted out of Oracle ERP by hand and validated against a half-dozen spreadsheets before either system would accept it. Reporting delays were the norm, not the exception, and the team had no real-time view of what had cleared the IRP versus what was still in flight.

  • Automated e-invoicing + e-way bill generation end-to-end
  • Real-time IRN status visibility for the finance team
  • Manual intervention down to exception cases only
ClearTaxOracleSmelter
Tax & Regulatory
A Malaysian edible-oils manufacturer
Food processing & edible oils

Malaysia’s LHDN e-invoicing mandate landed with a real go-live deadline and no path from the existing Oracle ERP to the government-authorised platform. Invoice submission, status tracking, and acceptance/rejection handling all needed to run automatically — and the existing process had none of that.

  • Full compliance with Malaysia’s LHDN e-invoicing mandate
  • Automated submission with real-time acceptance/rejection sync
  • Audit-ready invoice trail from ERP through the IRP
ClearTaxOracleSmelter
Tax & Regulatory
A non-banking financial-services lender
Lending & financial services

The lender generated e-way bills directly through the government portal whenever financed assets moved — manual data entry, manual validation, manual reconciliation across multiple systems. Volume kept rising; the team’s capacity to keep up didn’t. Compliance risk was visible on the floor.

  • Automated e-way bill generation across financed-asset movements
  • Manual portal touches eliminated for the standard path
  • Real-time compliance status feeding the ops dashboard
ClearTaxSmelterOracle
Tax & Regulatory
A precision engineering manufacturer
Engineering & manufacturing

An earlier vendor’s Oracle EBS → IRIS integration had been bolted on rather than engineered. Complex manufacturing tax scenarios broke it routinely; extraction was slow; mismatches between EBS and IRIS forced daily manual reconciliation. The finance team had stopped trusting the pipeline.

  • Per-transaction processing time down to 2–3 seconds
  • Daily manual workload eliminated — fully scheduled background runs
  • No EBS↔IRIS data discrepancies through multiple quarters
IRISOracle EBSSmelter
Tax & Regulatory
A product engineering services firm
Software engineering & IT services

GST compliance spanned multiple state registrations, and preparing sales and purchase data for GSTR filings was a slow, error-prone manual exercise. Invoice matching for GSTR-2 reconciliation was the worst of it — vendor discrepancies surfaced late, ITC slipped, and filings consistently missed the comfortable end of the deadline.

  • Filing-ready outputs for GSTR-1, 3B, and 2 across all states
  • Automated GSTR-2 reconciliation surfacing vendor mismatches up-front
  • Architecture absorbs NetSuite config changes without rework
ClearTaxOracle NetSuiteSmelter
Managed Services
A diversified auto & power conglomerate
Auto components & power

After Happay went live across the group’s auto and power businesses, the question turned to operations. Finance leadership did not want a body shop, did not want a help desk, did not want a separate vendor relearning the system every quarter. What they wanted was the engineers who had built it to still be on the system the morning after go-live, and the morning after that.

  • On-call SLA support post-go-live
  • Real-time transaction monitoring with alerts
  • Continuous enhancements over multiple quarters
HappayOODASmelter
HRMS
A retail-financial-services group
Lending & financial services

A retail-financial-services group was hiring fast across lending, asset management, and insurance distribution. The HR team was running attendance on one tool, payroll on another, and onboarding through a shared spreadsheet, and the CHRO wanted a single HRMS that the line managers would actually adopt — with payroll and statutory automated, and integration into the existing ERP and ticketing systems.

  • Keka rollout across 800+ employees
  • Payroll automation with statutory compliance
  • Integrated ERP + ticketing flows live at go-live
Keka HRSmelterTally
Tax & Regulatory
A multinational energy & petrochemicals group
Energy & petrochemicals

ZATCA Phase 2 in the Kingdom landed with a real clearance deadline — real-time IRN, QR codes, FATOORA-compliant XML — and the group’s billing ran on Oracle JDE. Existing processes were manual end-to-end; compliance risk and delivery risk were both real on the same timeline.

  • ZATCA-certified clearance in production
  • Real-time IRN + QR-code transmission from Oracle JDE
  • Audit-ready archival across every cleared transaction
ClearTaxOracle JDESmelter
Travel & Expenses
An Indian textile & apparel retailer
Textiles & retail

A national apparel retailer had no centralised system for store-level expense claims or petty cash. Advances and reimbursements lived in Excel, reporting was fragmented across three legal entities, and the corporate finance team had no real-time view of what stores were spending.

  • 200+ stores live on a single T&E platform inside 12 weeks
  • Paperless claims with audit-ready digital trails
  • Real-time visibility for corporate finance across all entities
HappaySmelterOODA
Travel & Expenses
A global automotive OEM
Automotive manufacturing

Reimbursements were slow, advances were poorly tracked, and travel bookings happened on email outside any system the finance team could audit. TA/DA calculations diverged across the field force, and compliance gaps were normal rather than exceptional.

  • Reimbursement cycles compressed and consistent across geographies
  • TA/DA calculated automatically — no spreadsheet arbitration
  • Travel bookings centralised and visible to corporate finance
HappaySmelterOODA
Travel & Expenses
A major bottling and beverages group
FMCG · bottling & distribution

The legacy expense process was rigid, the UX drove non-compliance, and the HRMS sat disconnected from the claim flow. DA validation was loose enough that policy breaches were going through without anyone noticing in real time. A real go-live deadline didn’t make the brief any easier.

  • Full T&E rollout end-to-end in 7 weeks
  • Policy breaches caught in-flow, not in audit
  • Real-time finance visibility from claim to GL posting
HappaySmelterOODA
HRMS
A high-growth tech startup
Software & technology

Hiring had outpaced HR. There were no documented processes, no policy library, and payroll was running unstructured — compliance was reactive and the salary structures weren’t tax-efficient enough to compete for senior talent. The founders wanted HR foundations laid down before the next funding round, not after.

  • HR foundations stood up from scratch — policies, payroll, statutory
  • Tax-optimised salary structures live across the org
  • Scalable processes that hold up through next-stage hiring
Keka HRSmelter
HRMS
A business consulting & technology firm
Professional services

Payroll was running with two structural defects: PF admin charges were only partially loaded into CTC, and Loss of Pay was being computed against CTC rather than Gross Salary. The two together inflated deductions, misrepresented take-home, and left statutory contributions wrong — quietly, every month.

  • Payroll method aligned to statute end-to-end
  • Accurate PF/ESI contributions on the correct base
  • CTC transparency restored — full breakdown visible to every employee
Keka HRSmelter
ERP
A global logistics & SME shipping franchise
Logistics & freight

Oracle NetSuite was the system of record, but a number of structural gaps were forcing manual workarounds every month — no auto-reversal for accrual JEs, only single-GSTIN-per-state support for India localisation, limited bank-reconciliation rules that couldn’t handle partial payments, and one-by-one e-invoicing that throttled billing during peak periods. The finance team was patching gaps the platform left open.

  • Auto-match rate on bank reconciliation up from ~60% to 95%+
  • Bulk e-invoicing replaced one-by-one IRN generation end-to-end
  • Month-end close shortened materially — accruals reverse on their own
Oracle NetSuiteClearTaxSmelter
Agentic AI
A global advisory firm
Professional services

The advisory firm needed an AI-enabled vendor-management product for its enterprise clients — covering the full vendor lifecycle, performance tracking, compliance, and procure-to-pay touchpoints. The brief was a multi-tenant SaaS, agent-assisted, with two-way integrations into the customer’s ERPs. Not a slide; a shipping product.

  • Vendor onboarding cycle compressed materially with workflow + OCR
  • Agent-assisted vendor matching live in the production P2P flow
  • Two-way ERP integrations shipping audit-ready vendor data
SAP ECCSAP HANA
Data Engineering
An advisory and assurance firm
Professional services

An advisory and assurance firm needed data pipelines for client onboarding, case management, and partner billing — pipelines that would have to satisfy their own audit standards. The systems already in place were not built with lineage as a first-class concern, and the partner team had begun to lose confidence in the numbers their own dashboards were producing.

  • Audit-ready pipelines with full lineage
  • Onboarding cycle reduced significantly
  • Continuous post-go-live ownership
SmelterQuarryPower BI
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