Doorstep Dairy
How we built secure Barclays Smartpay payment integrations for Doorstep Dairy, including recurring billing, a customer payment portal, and automated late payment control.
Discuss Your Payment Project View More WorkDSS compliant across all integrations
Transaction processing uptime
Processed through our payment systems
Security breaches in 8+ years
What Doorstep Dairy Needed
Businesses needed secure, reliable payment processing that went far beyond a simple gateway: recurring billing, self-service portals, and automated debt recovery, all within strict PCI compliance requirements.
PCI Compliance
Every payment touchpoint must meet PCI DSS Level 1 standards. A single vulnerability can mean data breaches, regulatory fines, and catastrophic reputational damage.
Recurring Billing Complexity
Clients needed automated recurring payments with retry logic, failed payment handling, pro-rata calculations, and customer self-service, all within Barclays Smartpay constraints.
Customer Payment Portals
Businesses needed secure, branded portals where customers could view invoices, update payment methods, set up direct debits, and manage their own payment schedules without staff intervention.
Late Payment Control
Manual chasing of overdue payments was consuming staff time and damaging cash flow. Clients needed automated escalation workflows that chase, remind, restrict access, and escalate, without human involvement.
What We Delivered
We engineered a complete payment ecosystem around Barclays Smartpay, from direct API integrations and recurring billing engines to white-label customer portals and intelligent late payment automation.
Barclays Smartpay Integration
Engineered direct API integrations with Barclays Smartpay (ePDQ) for card payments, tokenisation, and secure transaction processing. Built to handle one-off payments, subscriptions, and variable recurring amounts with full PCI compliance.
Recurring Payment Engine
Built a robust recurring billing system with automated retries, configurable billing cycles, pro-rata calculations for mid-cycle changes, failed payment handling, and automatic card expiry management. Customers receive automated receipts and payment confirmations.
Secure Customer Portals
Designed and developed white-label customer payment portals where end users can log in, view payment history, download invoices, update card details securely via tokenised forms, set up or modify recurring payments, and manage their account without contacting support.
Late Payment Automation
Engineered an intelligent late payment control system with configurable escalation rules: automated email reminders at defined intervals, SMS notifications, service restriction triggers, payment plan offers, and final notice workflows, all running autonomously with full audit trails.
Measurable Impact
Secure, reliable payment infrastructure delivering real business results across every integration.
Full Compliance
Every integration passes PCI DSS assessment with zero non-conformities. Card data is tokenised. We never store it, ever.
Securely Processed
Over £10 million in transactions processed through our Barclays Smartpay integrations without a single security incident.
Fewer Late Payments
Automated chasing and escalation workflows reduced overdue accounts by 85%, recovering thousands in revenue that was previously written off.
“Dynamics didn't just integrate a payment gateway. They built us an entire payment ecosystem. The recurring billing handles everything automatically, the customer portal has virtually eliminated payment-related support calls, and the late payment system has transformed our cash flow.”
Doorstep Dairy Management Team
Services Delivered
A full-stack engagement spanning payment integration, security engineering, and automation.
Barclays Smartpay API Integration
Direct ePDQ API integration for card payments, tokenisation, and secure transaction processing
Recurring Billing Engine
Automated recurring payments with retry logic, pro-rata calculations, and card expiry management
Customer Payment Portal
White-label self-service portals for invoices, payment history, and card management
Late Payment Automation
Intelligent escalation workflows with email, SMS, service restrictions, and audit trails
PCI Compliance & Security
Full PCI DSS compliance with tokenised card storage and secure data handling
Transaction Monitoring & Reporting
Real-time transaction dashboards, reconciliation tools, and comprehensive reporting
Need Secure Payment Integration?
Whether it's Barclays Smartpay, recurring billing, or a customer payment portal, we've been building payment systems for over 8 years. Let's talk.



