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Innovative tools and services designed to address complex challenges today’s digital landscape.
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Hexagon is reshaping industries through smarter systems, streamlined workflows, and bold digital innovation.
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Hexagon is reshaping industries through smarter systems, streamlined workflows, and bold digital innovation.
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Connect Payment Providers With the Complete Transaction Workflow Behind the Customer Experience.
Hexagon integrates payment providers with websites, mobile applications, SaaS platforms, marketplaces, portals, CRM, ERP, accounting, subscriptions, invoicing, and reporting. We design the complete payment state—from intent and authorization through confirmation, settlement, refund, failure, reconciliation, and support.
- Customer payment journey
- Transaction-state design
- Financial-system synchronization
- Failure and reconciliation controls
Founded in 2007
U.S.-Led Discovery
Global Engineering
300+ Software Projects
A Payment Is Not Complete When the Checkout Screen Says “Success.”
The provider may authorize a transaction while the order, subscription, invoice, customer record, accounting entry, inventory, or service access remains incorrect. Refunds, disputes, failed renewals, duplicate requests, delayed webhooks, and settlement differences create operational problems after checkout.
Hexagon maps the full payment lifecycle, record ownership, provider events, business-system updates, customer communication, reconciliation, exceptions, and support responsibilities before the integration is built."
The Payment Lifecycle the Integration Must Coordinate
Create The Payment Intent
- Customer
- Order
- Invoice
- Subscription
- Amount
- Currency
- Taxes
- Fees
- Metadata
Confirm Business Action
- Order status
- Subscription access
- Booking
- Invoice
- CRM activity
- Inventory
- Notification
Authorize OR Collect
- Hosted checkout
- Embedded flow
- Tokenized method
- Authentication
- Provider response
Reconcile And Support
- Provider transaction
- Internal record
- Accounting entry
- Fees
- Payout
- Exception
- Customer support
- Audit history
Process Later Events
- Capture
- Settlement
- Renewal
- Failure
- Retry
- Refund
- Partial refund
- Dispute
- Chargeback
Which Payment Integration Model Fits the Requirement?
| Situation | Recommended Path | Typical Deliverable |
|---|---|---|
 One website or application needs a standard provider checkout and basic order confirmation. | DEFINED CHECKOUT INTEGRATION | Typical Deliverable: Provider setup, hosted or embedded checkout, callbacks, status updates, testing, documentation, and launch. |
| A SaaS, membership, or service business needs plans, renewals, upgrades, failures, retries, cancellations, and invoices. | SUBSCRIPTION BILLING INTEGRATION | Plan and price mapping, lifecycle events, access rules, retries, customer portal, reporting, and support. |
| A marketplace or platform must collect, split, hold, route, or settle funds among several parties. | MARKETPLACE PAYMENT INTEGRATION | Account onboarding, payment flow, fees, transfers, refunds, disputes, reconciliation, permissions, and provider review. |
| Several channels or business systems require provider abstraction, shared transaction services, or advanced operational control. | PAYMENT INTEGRATION LAYER | Shared service, provider adapters, queues, webhooks, transaction state, monitoring, reconciliation, administration, and versioning. |
Six Ways Hexagon Can Integrate Payment Workflows
Website & eCommerce Payments
Mobile & In-App Payments
Integrate approved payment flows into mobile applications with tokenization, provider SDKs, server-side validation, transaction state, and support behavior.
Subscription & Recurring Billing
Manage plans, trials, renewals, upgrades, downgrades, cancellations, payment failures, retries, invoices, access, and customer communication.
Marketplace & Multi-Party Payments
Support provider-approved seller or service-provider onboarding, platform fees, transfers, refunds, disputes, status, reporting, and reconciliation.
CRM, ERP, Accounting & Invoice Integration
Synchronize customers, invoices, payments, credits, fees, refunds, payouts, and status with approved business and financial systems.
Payment Modernization, Monitoring & Reconciliation
Upgrade legacy integrations, provider versions, authentication, webhooks, logs, alerts, exceptions, reconciliation, reporting, and support procedures."
Choose the Page That Matches the Payment Problem
Payment Gateway Integration
Use when an existing payment provider must be connected with checkout, mobile, subscriptions, marketplace transactions, CRM, ERP, accounting, invoices, or customer portals.
Custom Payment Software Development
Use when the requirement is a broader payment product or operational platform involving ledgers, wallets, merchant management, settlement, payment orchestration, transaction operations, or a purpose-built commercial payment solution.
Ecommerce Development
Use when payment is one part of a larger storefront, catalog, cart, order, customer, inventory, fulfillment, marketing, and commerce-management requirement.
API Integration Services
Use when payment is one of several general system connections in a broader integration project.
Customer Experience
Amount, currency, taxes, fees, confirmation, duplicate-click behavior, cancellation, failure, retry, receipt, and support messaging
Transaction State
Intent, authorization, capture, settlement, renewal, refund, dispute, chargeback, expiry, cancellation, and internal status mapping
Provider & Security
Approved account, environments, keys, webhook verification, tokenization, hosted or embedded flow, roles, secrets, logging, and provider requirements
Business Systems
Order, subscription, invoice, CRM, ERP, accounting, inventory, service access, communication, and reporting updates
Operations
Monitoring, alerts, retries, exception ownership, reconciliation, fees, payouts, refund authority, support, incident response, and documentation
Payment Launch Readiness Checklist
Recognized for Technology Innovation and Delivery Excellence
Hexagon IT Solutions has earned positive client ratings and recognition from independent technology and business publications for custom software development, digital transformation, innovation, and technology delivery.
4.9/5 Client Rating
DesignRush
Best Digital Transformation Consultancy
Corporate Vision · 2025 Winner
Innovation Excellence Awards
CIO Bulletin · 2024
Recognized in 2026 Technology Rankings
Software Development & IT Services
Founded in 2007, Hexagon combines U.S.-led discovery with global engineering and delivery capabilities to help organizations modernize operations through custom technology solutions.
From Payment Workflow Discovery to Reconciled Production Operation
1
Business and Payment Flow Discovery
Define channels, customers, products, orders, subscriptions, invoices, currencies, fees, refunds, providers, systems, and responsibilities.
2
Provider and Transaction-State Design
Confirm account capabilities, checkout method, tokens, authentication, events, statuses, mapping, retries, refunds, disputes, and limits.
3
System and Reconciliation Design
Define order, customer, invoice, accounting, subscription, inventory, reporting, payout, fee, and reconciliation behavior.
4
Integration Development
Implement provider APIs or SDKs, server-side validation, webhooks, business updates, queues, logs, administration, and customer messages.
5
Test Normal and Failure Scenarios
Validate successful, failed, duplicate, delayed, partial, refund, renewal, cancellation, dispute, settlement, and provider-unavailable scenarios.
6
Launch and Operate
Enable production, monitor events, reconcile records, resolve exceptions, rotate credentials, update provider versions, and support users.
A Payment Integration Architecture Connecting Customer Channels and Financial Operations
Payment Application Services
Checkout
Payment intent
Subscription
Refund
Webhooks
Transaction state
Customer communication
Access rules
Customer & Staff Channels
- Website
- Mobile app
- SaaS
- Marketplace
- Portal
- Point of service
- Support
- Administration
Provider & Business Systems
Payment provider
CRM
ERP
Accounting
Orders
Inventory
Invoicing
Tax
Subscription
Reporting
Operational Control
Authentication
Logs
Alerts
Retries
Reconciliation
Fees
Payouts
Exceptions
Audit history
Incident and release management
Designed Around Provider Requirements, Sensitive Data Boundaries, and Reconciliation
Minimize Sensitive Payment Data
Use hosted or tokenized provider capabilities where appropriate and avoid unnecessary storage or handling of card data.
Secure Integration and Access
Protect keys and secrets, verify webhooks, validate server-side events, restrict roles, log approved activity, rotate credentials, and separate environments.
PCI and Regulatory Responsibility
Confirm the merchant, provider, hosting, integration, operational, and assessment responsibilities for the exact payment flow. Hexagon should not claim PCI DSS certification unless independently verified.
Financial Reconciliation and Support
Match provider events with internal transactions, invoices, fees, payouts, refunds, and accounting records; define exceptions, ownership, reports, and resolution procedures."
How Payment Integration Engagements Are Scoped
Defined Checkout Integration
Best for one provider, one primary channel, and a manageable order or invoice confirmation workflow.
Subscription or Multi-System Payment Workflow
Best for recurring billing, CRM, ERP, accounting, invoicing, refunds, access, reporting, and several operational events.
Marketplace or Payment Integration Layer
Best for multi-party payments, several channels or providers, reusable payment services, administration, reconciliation, monitoring, and long-term ownership."
Payment Launch Readiness Checklist
Customer Experience
Amount, currency, taxes, fees, confirmation, duplicate-click behavior, cancellation, failure, retry, receipt, and support messaging
Transaction State
Intent, authorization, capture, settlement, renewal, refund, dispute, chargeback, expiry, cancellation, and internal status mapping
Provider & Security
Approved account, environments, keys, webhook verification, tokenization, hosted or embedded flow, roles, secrets, logging, and provider requirements
Business Systems
Order, subscription, invoice, CRM, ERP, accounting, inventory, service access, communication, and reporting updates
Payment Gateway Integration Questions
What is payment gateway integration?Payment gateway integration connects an approved payment provider with a website, mobile application, SaaS product, marketplace, customer portal, CRM, ERP, accounting, invoicing, subscription, or other business workflow.
Which payment providers can Hexagon integrate?Hexagon can review providers that offer suitable APIs, SDKs, webhooks, environments, commercial access, and documentation. Provider support should be confirmed during discovery rather than published as a permanent universal list.
Can payment integration support subscriptions and recurring billing?Yes. The design can cover plans, trials, renewals, upgrades, cancellations, failed payments, retries, invoices, access rules, customer communication, refunds, and reporting.
Can payments be synchronized with CRM, ERP, accounting, or invoices?Yes. The integration can update approved customer, order, subscription, invoice, payment, fee, refund, payout, and accounting records with validation, monitoring, and reconciliation.
How do you handle failed payments, duplicate requests, and delayed webhooks?The integration can use transaction-state rules, server-side validation, idempotency or duplicate prevention, retries, queues, alerts, exception records, user messages, and reconciliation based on the provider and business workflow.
Does Hexagon guarantee PCI DSS compliance?No. PCI DSS scope and responsibility depend on the merchant, provider, integration method, hosting, operations, data handling, and assessment. Hexagon can design controls and support implementation but should not claim certification without verified evidence.
How much does payment integration cost and how long does it take?Cost and timeline depend on the provider, channels, checkout method, subscriptions, marketplace rules, connected systems, refunds, disputes, currencies, reconciliation, security, testing, and support. A defined checkout may take several weeks, while a multi-system payment environment may require several months."
Reviewed by Daks J.
Founder & CEO, Hexagon IT Solutions
Daks founded Hexagon IT Solutions in 2007 and leads business discovery and solution planning for CRM, ERP, custom software, APIs, integrations, payments, AI, content platforms, and industry software engagements. He works with clients to connect operational requirements, technology decisions, and long-term delivery planning.
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