What Is Aggregated Payment? Architecture, Business Models, Risks and Future Trends Explained

Aggregated Payment Overview

Aggregated payment (also known as the four‑party payment model) emerged similarly to three‑party payment by integrating multiple payment channels so that merchants need only a single integration to access many payment methods.

It simplifies payment processes, improves efficiency, and drives rapid development in the payment industry.

01. Basics of Aggregated Payment

1.1 What Is Aggregated Payment

Aggregated payment is a service that integrates the payment, settlement, and clearing services of multiple banks, non‑bank institutions, or clearing organizations into a single product for merchants. Examples include platforms like "ShouQianBa".

1.2 Why Aggregated Payment Appeared

1) The number of payment methods (Alipay, WeChat Pay, UnionPay, etc.) has increased, raising integration and management complexity for merchants. 2) The proliferation of mobile terminals (Android, iOS) requires payment compatibility across platforms, increasing development difficulty and operational costs. 3) Consumer demand is diverse; a single payment method cannot satisfy all scenarios, necessitating multiple options. 4) Aggregated payment solves single‑channel collection and reconciliation pain points, providing comprehensive data for business analysis. 5) It integrates various payment scenes such as QR code, NFC, HTML5, and in‑app payments.

1.3 Related Product Concepts

Core Functions : Integrates multiple payment methods (Alipay, WeChat Pay, UnionPay, etc.) into one platform, offering merchants a unified collection channel and a clear management backend for transaction queries, reconciliation, refunds, and settlement.

Technical Implementation : Connects to multiple payment channels via APIs, supports WeChat mini‑programs, QR code payments, and provides hardware like scanners and smart POS devices.

Application Scenarios : Consolidates different payment methods into a single QR code or terminal for both online and offline merchants.

Backend Management : Includes accounting, settlement, merchant management, channel management, transaction monitoring, and risk control modules.

Value‑Added Services : Combines advertising and membership marketing to help merchants acquire customers and offers financial value‑added services.

1.4 Development History

Timeline :

2014‑2015: Start‑up phase; QR codes become mainstream for offline payments, creating a market for aggregated services.

2016‑2017: Rapid expansion; many aggregators and acquiring institutions enter the market, driven by Alipay and WeChat.

Late 2017‑present: Compliance phase; regulatory policies address “second‑clearing” risks, leading to healthier industry development.

Industry Map :

Demand side: offline stores, e‑commerce platforms, mobile apps.

Service providers: ShouQianBa, Ping++, DoraBao, LiChuSaoBei, PingPong, QianHai Pay.

Technical support: Alipay, WeChat Pay, UnionPay, KuaiQian, HuiFu TianXia.

Clearing centers: NetUnion and UnionPay.

End users: individual consumers and enterprise customers.

02. Global Architecture of Aggregated Payment

2.1 Product Architecture

The system consists of three layers: the front‑end product layer (wallet apps, merchant POS, reconciliation platform, agency management, operation management), the core payment layer (business processing and related services), and the supporting layer (SMS, messaging, logging, third‑party integrations).

2.2 Types of Business

Technical integration: provides API bridges to multiple channels without handling funds.

Institutional forwarding: connects merchants with banks or third‑party payment platforms.

Value‑added services: offers customer management, marketing tools, data analysis.

Hardware support: supplies smart POS, scanners, etc.

Online integration: offers unified APIs for e‑commerce platforms.

2.3 Architecture Details

Application Layer : User‑facing products such as QR code checkout, QR payment, utility payments, credit card refunds, mobile top‑up.

Routing Layer : Determines default payment method order based on fees, stability, and user preferences.

Payment Gateway : Unified entry point providing secure API interfaces, encryption, signature verification, and circuit‑breaker mechanisms.

Payment Products : Various payment methods (bank cards, Alipay, WeChat, UnionPay Cloud QuickPass, etc.).

Payment Routing : Selects the optimal channel based on amount, fees, and channel stability.

Customer Center : Manages personal and enterprise customer information.

User Center : Handles user registration and merchant onboarding.

Account & Ledger : Manages account creation, balance, and transaction logs.

Order Center : Creates and manages business and payment orders, updates statuses based on callbacks or active queries.

Accounting Center : Performs single‑entry and double‑entry bookkeeping after settlement.

Clearing Center : Reconciles daily transaction files, calculates fees and profit sharing.

Fund Management : Handles settlement funds, reserves, and payouts.

Marketing Center : Manages coupons and promotional activities.

Risk Control Center : Configures blacklists, transaction limits, and other risk rules.

03. Business Model Analysis

3.1 Commercial Model

Aggregated payment earns revenue through transaction commissions, technical service fees, advertising, SaaS software services, hardware sales, and comprehensive system solutions.

3.2 Advantages

Diversity and convenience for merchants and consumers.

Cost reduction by avoiding multiple integrations.

Improved user experience and reduced cart abandonment.

Detailed data analysis and unified reconciliation.

Security through encryption and identity verification.

Unified payment solves single‑code limitations.

3.3 Risk Points

“Second‑clearing” risk due to unlicensed intermediaries.

Uncertain profitability amid commission wars.

Homogenized competition among many aggregators.

Market oligopoly dominated by UnionPay, Alipay, and WeChat.

Technical security risks such as data leakage.

Potential for money laundering and fraud.

Regulatory compliance challenges for new financial services.

04. Business Model, Network Entry, Settlement, Accounting

4.1 Business Models

Direct connection: aggregators directly integrate with Alipay, WeChat, etc., handling merchant onboarding, documentation, development, QR generation, and installation.

Acquiring institution cooperation: aggregators partner with licensed acquiring banks to ensure compliance and reduce “second‑clearing” risk.

Agency model: agents develop and maintain merchant relationships.

Smart POS model: aggregators provide hardware that integrates multiple payment methods.

Online aggregation: unified APIs simplify integration for e‑commerce platforms.

4.2 Merchant Onboarding

Online registration and real‑name verification.

Submission of enterprise qualifications (business license, account permit, ID).

Provision of transaction scene materials (invoices, contracts, store photos).

Review and risk assessment.

Signing of cooperation agreements.

Technical integration and training.

Testing and launch preparation.

Official launch.

Ongoing support and service.

4.3 Cash Register (Payment Terminal) Analysis

The cash register aggregates multiple payment methods, displays order details, allows payment method selection and sorting, sets default methods, shows limits and discounts, provides real‑time result feedback, guides the payment flow, supports multiple scenarios (PC, H5, APP, mini‑program), performs routing, and offers data statistics.

4.4 Payment Channels

Third‑party channels: Alipay, WeChat Pay, JD Pay, Baidu Wallet.

Bank card channels: UnionPay network.

E‑wallets: Yi Pay, JD Wallet, etc.

QR code payments: unified QR for multiple methods.

Cross‑border payments: Visa, MasterCard, PayPal, Paytm.

Prepaid cards.

4.5 Order, Settlement and Clearing

1) Order payment: user submits order, system deducts funds and returns result. 2) Daily cut‑off: system aggregates transactions at a fixed time. 3) Reconciliation: download and match files from payment channels. 4) Clearing: calculate fees, profit sharing, and settle merchant funds. 5) Split‑payment and profit‑sharing: allocate amounts to agents, merchants, and platforms. 6) Business accounting: record single‑entry and double‑entry ledgers.

4.6 Routing and Accounting Design

Inbound routing considers channel availability, cost, limits, and card type. Outbound routing adds considerations of cost, arrival time, limits, and account type. Routing rules can be configured manually or via weight‑based algorithms, often prioritizing lowest cost while respecting limits and stability.

Account design follows standard accounting subjects (assets, liabilities, equity, cost, profit‑loss). Implementation includes an account table (ID, name, subject, balance) and a ledger table for transaction records.

05. Industry Policies and Ecosystem

5.1 Policy Overview

Aggregated payment expands third‑party payment services, sits between merchants and payment platforms, and does not require a payment license but must comply with regulations. The central bank targets illegal “second‑clearing” activities while supporting compliant aggregators.

5.2 Current Situation and Challenges

Multiple profit models (service fees, commissions, advertising, finance).

Regulatory support with ongoing compliance enforcement.

Challenges: regulatory scrutiny, data security, fee compression, business homogenization, fragmented small merchants.

06. Future Development Outlook

Future trends include vertical industry scenarios, deeper merchant penetration, refined services (data analysis, marketing, finance), diversified business (advertising, consumer finance, big data), and full IoT integration for seamless payments.

Conclusion

Aggregated payment offers great opportunities but also faces technical, regulatory, and competitive challenges; continuous innovation, security enhancement, and ecosystem collaboration are essential for sustainable growth.