The LangChain AI Engine Behind Seamless Lead Validation and Enrichment 

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Client Overview

The client is a fast-growing organization that depends on third-party vendors to source business leads across diverse sectors, from neighborhood restaurants to national retail chains. To stay competitive, they need every incoming lead to be accurate, complete, and ready for immediate sales action. With volumes of raw merchant data arriving daily in varying formats, ensuring consistency and reliability is a critical priority for their growth strategy.

Lost in the Noise: Overcoming the Mayhem of Incomplete and Duplicated Leads

The client received leads from a third-party vendor with a rich mix of attributes such as name, location, phone number, merchant category, operating hours, and online presence. However, the incoming data was often inconsistent and unstructured, creating significant hurdles in verifying, enriching, and deduplicating large volumes of merchant information.

These gaps slowed onboarding, complicated sales prioritization, and introduced inefficiencies across downstream operations. To overcome these challenges and ensure high-quality, actionable leads, the client required a scalable, AI-driven framework capable of streamlining data processing, enhancing accuracy, and elevating overall lead quality.
01

Costly and Time-Consuming Manual Validation

The client relied heavily on manual review to validate third-party business data, driving up operational costs and slowing the overall process. Handling roughly 155,000 raw leads each month made this approach expensive and inefficient.

02

Delayed Lead Utilization

Because validation and enrichment were performed manually, leads took longer to become sales-ready. The processing lag limited the client’s ability to capitalize on timely business opportunities.

03

Human Inconsistency and Data Gaps

Many records arrived incomplete or vague, and manual checks often introduced inconsistencies. Operators had to verify details such as phone numbers, merchant status, and categories without a standardized framework.

04

Duplicate and Misclassified Records

Despite initial deduplication using geolocation and the existing merchant database, duplicate entries and misclassifications continued to slip through basic matching logic, leading to missed opportunities and inaccurate reporting.

05

Fragmented Enrichment Process

There was no standardized enrichment or segmentation workflow. Operators were forced to navigate multiple tools and perform multi-step validation whenever leads contained partial or conflicting data, increasing effort and error rates.

Intelligent Data Refinery: The AI-Driven Lead Qualification Framework

To overcome the client’s data-quality hurdles, an AI-assisted workflow was implemented with four powerful modules:

Deduplication Engine

Deduplication Engine

Leveraged SERP APIs and existing database records to accurately match businesses by name and geolocation, eliminating duplicates before they entered the pipeline.

AI Assistant for Enrichment

AI Assistant for Enrichment

Used large language models to fill in missing fields, classify business types, verify online presence, and extract clean, structured contact details.

Model Scoring System

Model Scoring System

Assigned a confidence score (0–100%) based on completion of ten must-have data fields, ensuring each lead met rigorous quality benchmarks.

Smart Routing Logic

Smart Routing Logic

Automated next steps according to the model score:
• ≥ 80% – Auto-approved and pushed directly to the CRM.
• < 40% – Auto-rejected and archived.
• 40–80% – Flagged for manual review through a streamlined review pipeline.

This end-to-end AI framework transformed messy, inconsistent inputs into verified, high-quality leads ready for immediate sales action.

Streamlined Intelligence: The End-to-End AI Lead Processing Flow

Seamless Data Ingestion

CSVs containing raw leads were uploaded to Kirby Tables, serving as the central staging hub for all incoming data.

Smart Deduplication

A powerful check ran against the SERP API and internal reference databases to identify and eliminate duplicates before further processing.

AI-Powered Enrichment

Validated leads were passed to a LangChain-based AI agent hosted on Jupyter/DSW, where missing attributes were enriched and business details refined.

Structured Output Generation

The AI generated clean, structured fields - name, phone number, website, operational status, and hours ready for scoring and routing.

Intelligent Scoring & Routing

Each lead was assigned a quality score and automatically funneled into the correct bucket for approval, rejection, or manual review.

Human-in-the-Loop Review

Flagged leads entered Sherlock for final auditing, while clean, high-confidence records flowed directly into Salesforce, ensuring a polished, sales-ready pipeline.

Tangible Business Gains: Measurable Impact of the AI Framework

01

Faster Turnaround

Manual review time was cut by 50%, allowing leads to reach the sales team far more quickly.

02

Precision at Scale

The AI workflow delivered higher accuracy and less variance than traditional manual checks, ensuring consistent data quality.

03

Cost Efficiency

Automation lowered the cost-to-qualify each lead, freeing resources for growth-focused initiatives.

04

Continuous Learning

A built-in feedback loop enabled ongoing model refinement, improving performance with every cycle.

05

Sales-Ready Output

Leads were delivered as structured, CRM-ready data, empowering sales teams to act immediately.

06

Visual Validation

Integration with the Google Maps API provided seamless visual verification and real-world confirmation of merchant details.

About Indium

Indium is an Al-driven digital engineering company that helps enterprises build, scale, and innovate with cutting-edge technology. We specialize in custom solutions, ensuring every engagement is tailored to business needs with a relentless customer-first approach. Our expertise spans Generative Al, Product Engineering, Intelligent Automation, Data & Al, Quality Engineering, and Gaming, delivering high-impact solutions that drive real business impact.

With 5,000+ associates globally, we partner with Fortune 500, Global 2000, and leading technology firms across Financial Services, Healthcare, Manufacturing, Retail, and Technology-driving impact in North America, India, the UK, Singapore, Australia, and Japan to keep businesses ahead in an Al-first world.