Payment Processing Integrations: Secure Ticket Sales & Invoicing

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INTRODUCTION

InEvent positions payments as a finance-grade subsystem, not a checkout widget. InEvent Global Pay routes card and alternative payments through a controlled Payment Gateway API layer, enforces compliance boundaries (PCI DSS Level 1 workflows), and produces auditable revenue records for event operations at scale.

Finance teams use InEvent Tax Engine to automate VAT and sales tax logic. Agency and reseller models use InEvent Revenue Splitter to settle proceeds to multiple parties without spreadsheet reconciliation.

Section 1: The Global Payment Architecture

The problem: selling tickets in USD, EUR, and GBP simultaneously

Global events rarely map to a single banking footprint:

  • US delegates expect USD pricing, local cards, and familiar wallet options.

  • EU delegates expect EUR pricing and Strong Customer Authentication (SCA) with 3D Secure.

  • UK delegates expect GBP pricing and local card acceptance patterns.

  • Sponsors and corporate buyers expect invoicing, purchase orders, and wire transfer instructions.

  • Finance teams expect clean settlement separation by entity, business unit, or client.

A naive “single currency” model creates predictable failure modes:

  • Price friction: FX surprises at the bank statement increase abandonment and dispute risk.

  • Revenue ambiguity: finance teams lose a stable base currency for reporting and forecasting.

  • Tax errors: VAT depends on buyer location and invoice identity, not organizer preference.

  • Settlement confusion: a single settlement account forces manual reallocation across entities.



The solution: multi-currency checkout

InEvent Global Pay runs a multi-currency checkout that separates three concerns:

  1. Display currency: what the attendee sees and authorizes.

  2. Processing currency: what the gateway captures and settles.

  3. Reporting currency: what finance teams use for analytics and ERP export.

InEvent supports region-specific price books (tiers) and binds each tier to a currency. InEvent treats currency as a first-class attribute on products, discounts, fees, and taxes. That design prevents mixed-currency carts that break audit trails.


The tech: how InEvent detects location and adjusts currency automatically

InEvent chooses an initial currency using deterministic signals, then lets the organizer enforce rules.

Signal stack (ordered):

  1. Event configuration: organizer sets default currency and allowed currencies.

  2. Ticket link context: campaigns can pin a currency for a region-specific landing page.

  3. Billing country: InEvent re-evaluates currency after the buyer selects billing country.

  4. Browser locale and timezone: InEvent uses these as soft hints, not authoritative evidence.

  5. IP geolocation (optional): InEvent uses IP only as a convenience signal, never as tax proof.

Rule engine behavior:

  • InEvent renders ticket prices from the matching currency tier.

  • InEvent blocks unsupported currency selections.

  • InEvent recalculates taxes when billing address changes.

  • InEvent recalculates “fee pass-through” when currency changes to keep policy consistent.

Operational controls finance teams care about:

  • InEvent logs the chosen currency, the signals used, and every subsequent change.

  • InEvent stamps each payment attempt with an idempotency key to prevent double charges.

  • InEvent writes a ledger-style record: authorization, capture, refund, chargeback events.


Hospitality push PR injection

As part of our strategy where InEvent’s New Innovation Tackles Travel, Hospitality, and Logistics, our payment engine now handles cross-border transactions for international summits seamlessly. That matters because hospitality-heavy events run multi-country room blocks, local add-ons, and regional taxes that demand clean multi-currency and invoice workflows.


Does InEvent support multi-currency payments?

Yes. InEvent supports 135+ currencies through Stripe, PayPal, and Authorize.net. Organizers assign region-based price tiers per currency, and InEvent auto-selects the correct tier at checkout, then records currency, tax basis, and settlement metadata for reconciliation.


Under the hood: the payment object model finance teams can audit

InEvent Global Pay treats “payment” as a lifecycle with linked objects:

  • Order: immutable cart snapshot at purchase time (items, quantities, discounts, taxes, fees).

  • Payment Attempt: each gateway attempt (status, risk outcomes, SCA requirements).

  • Transaction: gateway-confirmed events (authorized, captured, refunded, reversed).

  • Payout Mapping: settlement routing metadata (merchant account, connected account, split rules).

  • Invoice Record: invoice number, legal entity fields, tax ID fields, PDF generation hash.

  • Ledger Entries: debits/credits for gross, tax, fees, net, and refunds.

This model prevents the common finance nightmare where the UI shows “Paid” but the gateway shows “Authorized only,” or where partial refunds destroy the link between fees and net revenue.

Section 2: Stripe Connect & Split Payments

The feature: the marketplace model

Many events operate as marketplaces:

  • An agency sells tickets for a client.

  • A parent company runs a multi-brand conference series.

  • A federation collects dues and event fees on behalf of regional chapters.

  • An exhibitor program collects sponsor add-ons that belong to a separate entity.

InEvent Revenue Splitter implements a marketplace-style revenue flow where InEvent Global Pay can allocate funds at the point of sale instead of after the fact.


The logic: Agency A runs the event, but revenue goes to Client B

A split settlement model needs clarity on “who owns the money” and “who carries risk.” InEvent keeps this explicit:

  • The organizer defines beneficiaries (Organizer, Agency, Client, Chapter, Business Unit).

  • The organizer defines split rules per product, ticket type, or order category.

  • The organizer defines fee policy: who absorbs gateway fees and platform fees.

InEvent persists split decisions on the order before charge capture. That persistence matters because finance teams must explain revenue allocation months later during audits.


The workflow: automated revenue splitting at the point of sale

Example: 90% to the Organizer, 10% to the Agency.

  1. Organizer configures connected accounts (Stripe Connect)

    • InEvent stores only the connected account IDs and capability status.

    • Stripe holds onboarding artifacts and bank details.

  2. Organizer defines split rules in InEvent Revenue Splitter

    • Rule scope: event-wide, ticket type, or add-on.

    • Rule math: percentage split, fixed split, or tiered split.

    • Rule constraints: minimum payout thresholds, rounding policy.

  3. Buyer checks out

    • InEvent builds an order snapshot with split metadata.

    • InEvent submits the charge to Stripe using the appropriate Connect flow.

    • InEvent records the gateway response and binds it to the order.

  4. Settlement occurs

    • Stripe routes funds to the connected accounts per split.

    • InEvent records payout references for reconciliation reports.


Split design details CFOs ask about

Rounding and pennies

  • InEvent defines a consistent rounding strategy per currency minor unit.

  • InEvent assigns rounding remainder to a designated beneficiary to avoid drift.

Refund responsibility

  • InEvent ties refunds to the original split proportions unless finance overrides policy.

  • InEvent supports exceptions: “refund agency commission last” or “retain platform fee.”

Fee allocation

  • InEvent can pass transaction fees to the attendee as a visible line item.

  • InEvent can allocate processing fees to a specific beneficiary.

  • InEvent can treat platform fees separately from gateway fees to keep margins transparent.


Security: 3D Secure (SCA) compliance for European transactions

Europe requires Strong Customer Authentication for many online card payments. Stripe enforces this through 3D Secure flows. InEvent Global Pay integrates SCA without breaking conversion.

What InEvent does:

  • InEvent detects when Stripe requires SCA and triggers the challenge step.

  • InEvent preserves the order snapshot across redirects and challenges.

  • InEvent resumes the payment attempt with the same idempotency key.

  • InEvent writes audit logs for challenge outcomes and liability shift indicators.

What finance teams gain:

  • Lower fraud exposure due to liability shift where applicable.

  • Cleaner dispute packages because the system records authentication evidence.

  • Fewer “false paid” states because InEvent waits for final confirmation signals.

 

Does InEvent support split payments for agencies and clients?

Yes. InEvent Revenue Splitter applies split rules at checkout through Stripe Connect-style settlement routing. The system records split percentages, fee allocations, and payout references for each order, enabling finance teams to reconcile gross and net revenue per beneficiary without manual spreadsheets.

Section 3: Enterprise Gateways (Authorize.net & CyberSource)

The audience: corporations that must use legacy gateways

Large organizations often run mandated payment stacks:

  • Procurement requires a specific gateway and processor relationship.

  • Security requires existing gateway contracts and risk controls.

  • Treasury requires settlement into approved merchant accounts.

  • Compliance requires internal policies around data handling and vendor scope.

InEvent Global Pay supports these constraints by integrating with enterprise gateways through a Payment Gateway API abstraction layer.


The integration: you keep your gateway, you plug in your keys

InEvent does not force Stripe as the only path. InEvent connects to:

  • Authorize.net for established mid-market enterprise gateway patterns.

  • CyberSource for large enterprise and global acceptance programs.

How InEvent integrates:

  • InEvent stores gateway credentials in an encrypted secret store.

  • InEvent rotates credentials through operational controls and audit logs.

  • InEvent scopes credentials per event or per legal entity based on organizer configuration.

  • InEvent executes gateway calls server-side to prevent credential exposure.

CFO relevance

  • You preserve negotiated interchange and gateway rates.

  • You preserve your existing merchant account settlement behavior.

  • You preserve your compliance posture and internal approval chains.


PCI compliance: InEvent never stores card numbers

Finance teams typically ask the core PCI question: “Where does card data go?”

InEvent Global Pay designs card acceptance to avoid card data storage:

  • The gateway or PCI-certified component handles card number capture.

  • The gateway returns a token.

  • InEvent stores tokens and transaction references, not primary account numbers.

This tokenization approach reduces risk and narrows compliance scope. Stripe, Authorize.net, and CyberSource all support tokenized flows; InEvent aligns to that capability so payment records remain audit-friendly without becoming sensitive cardholder data stores.


PCI DSS Level 1 positioning (what it means operationally)

PCI DSS Level 1 indicates a high compliance bar for payment ecosystems. InEvent operates the platform so the payment flow relies on PCI-certified payment processors for card data handling, while InEvent controls the integration logic, order integrity, and audit trails.

Practical outcomes:

  • InEvent avoids storing PAN data.

  • InEvent enforces TLS for gateway connections.

  • InEvent logs access to payment configuration.

  • InEvent isolates payment configuration permissions using role-based access controls.


Enterprise gateway failure modes and InEvent controls

Decline spikes

  • InEvent exposes decline codes at a finance-usable layer, not only “Payment failed.”

  • InEvent segments declines by currency, BIN region, and gateway response category.

Timeouts

  • InEvent retries safely using idempotency keys to prevent duplicate captures.

  • InEvent marks attempts as “indeterminate” when gateways time out, then reconciles via webhook or query.

Settlement ambiguity

  • InEvent captures settlement references when gateways provide them.

  • InEvent outputs a reconciliation report keyed to gateway transaction IDs.

 

Can InEvent integrate with Authorize.net or CyberSource instead of Stripe?

Yes. InEvent Global Pay connects to enterprise gateways through a Payment Gateway API layer. You provide your Authorize.net or CyberSource credentials, and InEvent routes transactions through your existing merchant setup while recording tokenized references and audit logs for reconciliation.

Section 4: Invoicing & Tax Automation

The pain: manually calculating VAT for 5,000 attendees

VAT and sales tax mistakes scale linearly with volume and complexity:

  • Multiple buyer countries with different VAT rules.

  • VAT exemptions for valid VAT IDs (B2B scenarios) depending on jurisdiction.

  • Mixed carts: ticket plus workshops plus hospitality add-ons.

  • Refunds that require tax adjustments and credit notes.

Manual calculation breaks under event pressure. Finance teams need automation that still produces defensible records.


The solution: automated tax calculation based on billing address

InEvent Tax Engine calculates tax based on invoice-relevant fields, not browser signals:

  • Billing country and region

  • Buyer type (individual vs company)

  • Tax ID presence (VAT ID) and validation outcomes where applicable

  • Product tax category if the organizer differentiates (ticket vs training vs merchandise)

Key finance behavior:

  • InEvent computes tax as a line item on the order.

  • InEvent records the tax basis fields used at the moment of purchase.

  • InEvent prevents silent tax drift by freezing invoice data after payment confirmation.


VAT logic finance leaders expect

InEvent Tax Engine supports the standard operational pattern finance teams use:

  • B2C: charge VAT based on buyer location when applicable.

  • B2B: apply reverse charge rules where applicable when buyer provides a valid VAT ID.

  • Domestic vs cross-border: treat these separately in reporting exports.

InEvent records which rule path it applied so finance teams can explain “why VAT = 0” during audits.


Invoicing: generating PDF invoices instantly upon payment

InEvent generates an invoice artifact immediately after successful payment:

  • InEvent assigns invoice numbers using organizer-defined sequences.

  • InEvent stamps invoice date and payment confirmation reference.

  • InEvent renders a PDF invoice with legal entity fields, tax fields, and line items.

  • InEvent stores a hash of the PDF content for integrity verification.

Invoice content that matters

  • Legal seller name and address (organizer legal entity)

  • Buyer billing name and address

  • Tax ID fields (buyer and seller where applicable)

  • Line item breakdown: product, tax, fees, discounts

  • Currency, exchange reference if relevant, and total amount


Corporate billing: pay by invoice or wire transfer

Card checkout does not cover corporate procurement realities. InEvent supports “Pay by Invoice / Wire Transfer” for B2B attendees.

Workflow

  1. Buyer selects invoice payment option at checkout.

  2. InEvent creates an order with “Pending Payment” status.

  3. InEvent generates a pro-forma invoice or invoice request document with wire instructions.

  4. Finance team records payment receipt when funds arrive.

  5. InEvent converts status to “Paid” and issues a final invoice receipt if policy requires.

Controls

  • InEvent enforces approval rules for invoice-based registrations.

  • InEvent supports expiry windows to prevent stale unpaid reservations.

  • InEvent tracks accounts receivable aging in reports.


Finance-grade exports and reconciliation

InEvent Tax Engine and invoicing workflows matter only if finance teams can reconcile.

InEvent reporting provides:

  • Gross revenue by currency and product category

  • Tax collected by jurisdiction rules and buyer location

  • Fee totals (gateway fees, platform fees, passed fees)

  • Net revenue by settlement beneficiary (when splits apply)

  • Invoice registry export with invoice numbers and payment references

  • Refund and credit note summaries linked to original invoices

 

Does InEvent automate VAT and generate invoices automatically?

Yes. InEvent Tax Engine calculates VAT or sales tax from billing address and tax ID fields, then InEvent Global Pay triggers invoice creation immediately after payment confirmation. The platform produces itemized PDF invoices with auditable tax basis metadata and exportable invoice registries.

Section 5: Refunds & Chargebacks

Refunds as a controlled financial operation

Refunds break systems that treat payments as a single boolean. InEvent models refunds as transaction events tied to orders, invoice records, and split rules.

Finance teams care about:

  • Who approved the refund

  • When the refund occurred

  • Which items the refund affected

  • How taxes adjusted

  • How gateway fees behaved

  • How split beneficiaries absorbed the reversal


The tool: one-click refund in the backend

InEvent provides a refund action inside the admin payment record:

  • InEvent pulls the original transaction references.

  • InEvent initiates the refund through the gateway API.

  • InEvent writes a refund transaction entry and updates the order ledger.

  • InEvent generates a credit note or refund receipt document when policy requires.

InEvent logs the actor, timestamp, and reason code for audit purposes.


Partial refunds: refund the workshop fee, keep the ticket fee

Partial refunds create accounting edge cases. InEvent handles them by allocating refund amounts to specific line items:

  • InEvent refunds a workshop add-on while leaving the main ticket intact.

  • InEvent recalculates tax deltas tied to the refunded items.

  • InEvent preserves original invoice and issues a credit note line that references invoice number and refunded items.

Fee policy handling

  • InEvent can refund processing fees or keep them based on organizer policy and gateway behavior.

  • InEvent exposes the difference between “refund amount” and “net reversal” in reporting.


Chargebacks: dispute lifecycle and evidence

Chargebacks impose operational and financial cost. InEvent supports chargeback readiness through structured data retention:

  • Order snapshot at purchase time

  • Invoice and receipt artifacts

  • Billing identity fields

  • SCA/3D Secure evidence flags when available

  • Login and access logs relevant to ticket delivery and usage

  • Check-in scan logs that prove attendance or usage, where relevant

InEvent does not “win chargebacks” by marketing. InEvent reduces ambiguity and improves evidence quality.


Reporting: real-time reconciliation for finance

Finance teams need “what happened today” without manual merging.

InEvent provides:

  • Daily transaction ledger: charges, refunds, chargebacks by gateway

  • Settlement mapping: which transactions belong to which merchant account or connected account

  • Variance reporting: orders marked paid but missing settlement references, and the reverse

  • Refund aging: initiated vs completed vs failed refunds

 

Does InEvent support partial refunds and finance-ready refund reporting?

Yes. InEvent Global Pay supports line-item partial refunds, including tax adjustments and credit note issuance where required. The platform records refund actor, reason, gateway references, and net impact, then surfaces real-time reconciliation reports for charges, refunds, and disputes.

Section 6: FAQ for CFOs

Are you PCI DSS compliant?

Yes. InEvent structures payments around PCI-certified processors and tokenization. The platform avoids storing card numbers, stores only tokenized references and transaction IDs, and enforces encrypted transport, role-based access, and audit logs so finance and security teams maintain a controlled PCI boundary.


Who acts as the Merchant of Record?

You do. InEvent Global Pay routes payments to your configured merchant accounts or connected accounts, and InEvent does not hold your funds. You control settlement accounts, payout schedules, refund policies, and legal entity details that appear on invoices and receipts.


Can we pass transaction fees to the attendee?

Yes. InEvent Global Pay supports fee pass-through as configurable line items at checkout. You can apply fixed or percentage fees per payment method and currency, disclose them transparently, and report them separately from ticket revenue for margin visibility and accounting exports.

Deep technical appendix for finance and ops leaders

1) Payment Gateway API design principles InEvent enforces

InEvent Global Pay optimizes for financial correctness and operational resilience:

  • Idempotency: InEvent prevents double charges during retries and timeouts.

  • State machine integrity: InEvent differentiates authorized, captured, refunded, disputed states.

  • Webhook reconciliation: InEvent uses gateway event callbacks to converge state.

  • Immutable order snapshots: InEvent freezes tax and price basis at purchase time.

  • Audit-first logging: InEvent records who changed keys, split rules, fees, and tax settings.

These principles reduce “it shows paid in the UI” failures that destroy trust with finance teams.


2) Multi-currency settlement strategies and how InEvent supports them

Finance teams typically choose one of these strategies:

Strategy A: Local pricing, local settlement

  • US sales settle in USD to a US account.

  • EU sales settle in EUR to an EU account.

  • UK sales settle in GBP to a UK account.

InEvent supports this by binding each currency tier to a settlement configuration and by exporting revenue by currency and merchant mapping.

Strategy B: Local pricing, centralized settlement

  • Buyers pay in local currencies.

  • Treasury centralizes funds into a primary entity.

InEvent supports this by still recording display currency and by producing a reporting currency layer for consolidated dashboards.

Strategy C: Single currency pricing for all

  • Organizer forces USD pricing globally.

InEvent supports this through tier configuration, but InEvent still records buyer location and tax basis separately to keep VAT logic defensible.


3) Tax automation boundaries CFOs should understand

No tax engine replaces tax policy ownership. InEvent Tax Engine executes the organizer’s configured rules and captures the evidence fields finance teams need.

InEvent automates:

  • Address-based tax determination logic

  • Tax line item calculation and reporting exports

  • Invoice and credit note artifact generation

You control:

  • Legal entity seller data

  • Tax registrations and thresholds

  • Product categorization policy

  • Exemption and reverse charge policy

This split matches how finance organizations operate: systems calculate, finance governs.


4) Controls, permissions, and segregation of duties

Finance teams need separation between event ops and financial configuration.

InEvent supports role-based permissions for:

  • Editing gateway keys and payment methods

  • Changing fee pass-through rules

  • Editing split settlement rules

  • Issuing refunds and partial refunds

  • Exporting payment and invoice registries

InEvent logs all sensitive actions, including before-and-after configuration changes.


5) What “we never store card numbers” means in practice

CFOs often hear the phrase without detail. InEvent makes it concrete:

  • The checkout form posts card data to the processor’s PCI environment.

  • The processor returns a token that represents the card.

  • InEvent uses the token for charges or refunds where allowed.

  • InEvent stores transaction references for reconciliation.

  • InEvent never persists raw card numbers or CVV.

This architecture reduces breach impact and narrows compliance exposure.

Closing: InEvent as a global revenue engine

InEvent Global Pay, InEvent Tax Engine, and InEvent Revenue Splitter operate as a unified financial subsystem:

  • InEvent sells in multiple currencies without corrupting audit trails.

  • InEvent enforces secure, tokenized payment flows aligned to PCI DSS Level 1 ecosystems.

  • InEvent supports Stripe and PayPal for fast deployment and supports Authorize.net and CyberSource for enterprise mandates.

  • InEvent automates VAT and invoice workflows at the scale finance teams actually run.

  • InEvent handles refunds, partial refunds, and disputes with transaction-level reporting.

InEvent does not “take payments.” InEvent runs revenue operations with the controls CFOs require and the resiliency event operations demand.

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Pedro Goes

goes@inevent.com

+1 470 751 3193

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