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How We Built a Complete Line of Credit System in Odoo with Plaid & Stripe Integration

A Case Study: Transforming Financial Operations for a US-Based Lending Company
SUCCESS STORY

Building a Line of Credit System That Actually Works

When a US-based lending company approached us with a complex challenge, we delivered a solution that exceeded their expectations.

Plaid API Stripe Odoo 17 Python
💳

Line of Credit

Plaid + Stripe + Odoo

The Client

A Growing Fintech Startup from California

Our client, a fintech startup based in San Francisco, was offering line of credit services to small businesses. They were struggling with manual processes, spreadsheet-based tracking, and disconnected payment systems.

They needed a unified system that could handle everything from credit approval to automatic collections—all within their existing Odoo environment.

Project Snapshot

Industry Fintech / Lending
Location California, USA
Platform Odoo 18 Community
Duration 8 Weeks
Integrations Plaid, Stripe, SendGrid
The Challenge

"We Were Losing $50K Monthly to Manual Errors"

The client's existing workflow was a nightmare. Credit officers were manually tracking credit limits in Excel, payment collections required logging into multiple portals, and delinquency notices were often sent late—or not at all.

Manual credit limit tracking with frequent errors
No automated payment collection system
Late fee calculations done by hand
Statements generated manually in Word
No real-time bank account verification
Customer complaints about billing errors
"

We interviewed 5 development agencies before choosing CodeCrafters. They were the only ones who truly understood the complexity of lending operations and had experience with both Plaid and Stripe.

Michael Reynolds

CTO, CapitalFlow Inc.

Our Solution

A Complete Line of Credit Management System

We built a custom Odoo module that seamlessly integrates Plaid for bank verification and Stripe for payment processing. Here's what we delivered:

🏦

Plaid Bank Verification

Instant bank account verification and balance checking. Customers link their accounts securely, and we verify funds before any credit disbursement.

  • Real-time balance verification
  • Account ownership confirmation
  • Transaction history analysis
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Stripe Auto-Deductions

Automated ACH deductions on scheduled due dates. No more chasing payments—the system handles collections automatically with proper retry logic.

  • Scheduled auto-debit on due dates
  • Smart retry for failed payments
  • Instant payment confirmation
⚠️

Delinquency Management

Accurate tracking of overdue accounts with automated escalation. Late fees are calculated precisely based on configurable rules and grace periods.

  • Automated late fee calculation
  • Configurable grace periods
  • Escalation workflow triggers
📄

Automated Statements & Emails

Professional PDF statements generated automatically every billing cycle. Customers receive branded emails with payment summaries and upcoming due dates.

  • Monthly statement generation
  • Payment reminder emails
  • Branded PDF attachments
Technical Implementation

Under the Hood

Plaid Integration

We implemented Plaid Link for secure bank connection, Auth for account verification, and Balance for real-time fund checking before disbursements.

Stripe Connect

ACH Direct Debit setup with automated payment schedules. Webhook handlers for real-time payment status updates and failure notifications.

Credit Engine

Custom Python module handling credit limit calculations, available balance tracking, interest accrual, and minimum payment computations.

Notification System

SendGrid integration for transactional emails with custom templates for statements, payment confirmations, and delinquency notices.

The Results

Numbers That Speak for Themselves

Within 3 months of going live, the client saw dramatic improvements across all key metrics. The automation eliminated manual errors and freed up their team to focus on growth.

95%

Reduction in Manual Work

99.2%

Payment Collection Rate

$50K+

Monthly Savings

0

Billing Complaints

"

CodeCrafters didn't just build us a module—they built us a competitive advantage. Our operations team went from firefighting daily issues to actually scaling the business. The ROI was visible within the first month.

Sarah Mitchell

CEO, CapitalFlow Inc.

Key Takeaways

What Made This Project Successful

Deep Discovery Phase

We spent 2 weeks understanding their exact workflows before writing a single line of code.

Iterative Development

Weekly demos ensured the client was aligned with progress and could provide feedback early.

Thorough Testing

Financial systems demand precision. We tested every edge case before go-live.

Have a Similar Project in Mind?

Whether it's fintech, lending, or any complex Odoo integration—we've got the expertise to make it happen.

Jaimin Shah 5 December 2025
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