Online Payment Processing Systems

𝐇𝐨𝐰 𝐎𝐧𝐥𝐢𝐧𝐞 𝐏𝐚𝐲𝐦𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 — A Look Inside the Digital Payment Journey by Solidgate 👇 Every time a customer pays online, a multi-step chain of real-time interactions kicks off — linking merchants, orchestrators, acquirers, card networks, and issuers to complete a transaction in seconds. — 🧩 𝐖𝐡𝐨 𝐀𝐫𝐞 𝐓𝐡𝐞 𝐌𝐚𝐢𝐧 𝐏𝐥𝐚𝐲𝐞𝐫𝐬? ► 𝐂𝐮𝐬𝐭𝐨𝐦𝐞𝐫 → Anyone initiating a payment — via web, mobile, or app ► 𝐌𝐞𝐫𝐜𝐡𝐚𝐧𝐭 (Booking.com, Alibaba Group, Glovo) → Offers goods or services and accepts online payments ► 𝐎𝐫𝐜𝐡𝐞𝐬𝐭𝐫𝐚𝐭𝐨𝐫 / 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐆𝐚𝐭𝐞𝐰𝐚𝐲 (Solidgate, DEUNA, CellPoint Digital) → Tokenizes sensitive data (either the orchestrator, PSP or 3rd Party vault (i.e.VGS), performs pre-checks, applies fraud scoring, and routes transactions to optimal acquirers ► 𝐀𝐜𝐪𝐮𝐢𝐫𝐞𝐫 (Adyen, Checkout.com, Getnet) → Manages the merchant account and submits the payment request to card networks ► 𝐂𝐚𝐫𝐝 𝐍𝐞𝐭𝐰𝐨𝐫𝐤 (Visa, Mastercard, American Express, GIE Cartes Bancaires) → Connects the acquirer and issuer, governing the messaging, standards, and authorization flows ► 𝐈𝐬𝐬𝐮𝐞𝐫 (Chase, Barclays, Santander, Ramp, American Express, Marqeta) → Verifies and authorizes the transaction by checking account balance, card status, and customer validation — 𝐓𝐡𝐞 𝐎𝐧𝐥𝐢𝐧𝐞 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐅𝐥𝐨𝐰 — 𝐒𝐭𝐞𝐩 𝐛𝐲 𝐒𝐭𝐞𝐩 1️⃣ 𝐂𝐡𝐞𝐜𝐤𝐨𝐮𝐭 Customer submits card info on the merchant’s frontend (website or app) 2️⃣ 𝐎𝐫𝐜𝐡𝐞𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧 𝐁𝐞𝐠𝐢𝐧𝐬 Solidgate validates and tokenizes the card details, then applies fraud filters 3️⃣ 𝐓𝐫𝐚𝐧𝐬𝐚𝐜𝐭𝐢𝐨𝐧 𝐑𝐨𝐮𝐭𝐢𝐧𝐠 Based on geography, past performance, or cost, the request is routed to the most suitable acquirer (e.g. Payplug) 4️⃣ 𝐅𝐨𝐫𝐰𝐚𝐫𝐝 𝐭𝐨 𝐂𝐚𝐫𝐝 𝐍𝐞𝐭𝐰𝐨𝐫𝐤 The acquirer forwards the transaction to a card network (Visa, Mastercard) 5️⃣ 𝐈𝐬𝐬𝐮𝐞𝐫 𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐞 The issuer (Santander) verifies the request and responds with an approval or decline 6️⃣ 𝐅𝐢𝐧𝐚𝐥 𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐞 𝐭𝐨 𝐌𝐞𝐫𝐜𝐡𝐚𝐧𝐭 The result is passed back to the merchant — via the orchestrator, acquirer, and card network 7️⃣ 𝐒𝐞𝐭𝐭𝐥𝐞𝐦𝐞𝐧𝐭 If approved, funds are captured and settled into the merchant’s account — 𝐊𝐞𝐲 𝐂𝐫𝐢𝐭𝐞𝐫𝐢𝐚 𝐰𝐡𝐞𝐧 𝐬𝐞𝐥𝐞𝐜𝐭𝐢𝐧𝐠 𝐚 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞: → Real-time fraud scoring & validation → Intelligent acquirer selection to optimize conversion → Seamless integration with Visa, Mastercard, and leading issuers → One API across global markets for scale and control As the payment stack becomes more modular and distributed, understanding each player’s role is key to building resilient, scalable online commerce. — Source: Solidgate ► Subscribe to 𝐓𝐡𝐞 𝐏𝐚𝐲𝐦𝐞𝐧𝐭𝐬 𝐁𝐫𝐞𝐰𝐬 ☕: https://lnkd.in/g5cDhnjC ► Connecting the dots in payments... | Marcel van Oost

Feeling Lost in Payment Jargon? Ever Wonder How Your Payment Goes Through and Wonder How Money Actually Moves? This guide explains payments like you've never seen them before and uncovers the hidden players behind the scenes. Learn the basics 👇 Here's a simplified breakdown from ByteByteGo & Alex Xu but first lets understand some terms used 1/ An Independent Sales Organization (ISO) and a Member Service Provider (MSP) are third-party companies that work with credit card member banks like Visa or Mastercard to sign up new merchants. The terms ISO and MSP are used interchangeably. ISO/MSPs must be registered and sponsored by a member bank, which verifies their financial stability to allow them to market payment processing services to merchants. 2/ A payment gateway is a network that collects, verifies and performs fraud checks on customer’s card information before sending it to the payment processor. 3/ A payment processor is a service that routes a customer’s card information between the customer’s bank & the merchant bank. Here is how a typical payments journey works 1. You got the card: You get a debit/credit card from your bank (issuer). 2. Seller signs up: Businesses (merchants) need to accept payments. They usually sign up with a an ISO/MSP 3. You buy something: You swipe your card or pay online. 4. Payment gateway: This tech captures your payment info. 5. Payment processor: This verifies your info and owns and operates the merchant’s account during settlement, which doesn’t happen in real-time. 6. Card network: routes the info to your bank. 7. Your bank checks your account. 8. Money moves: If all is good, funds are transferred to the merchant's bank. There are many other nuances within this payments flow from an acquiring vs issuing perspective however, that detailed breakdown is for another time. Why it matters: • A Booming Opportunity: The payments industry is massive and constantly evolving, offering space for innovative solutions. Fintechs fill gaps in the traditional system with faster, more efficient services • Cutthroat Competition: However, competition is fierce.Traditional banks and new startups are all vying for a share of the market, which can lead to ‘Shrinking Profits’ - With more players involved, the profit pie gets sliced thinner • Regulatory Hurdles: Regulations are tightening around data privacy and security. This means - Fintechs must comply with local data laws and potentially set up local operations while carefully balancing global Vs local -: Therefore, Fintechs still need to maintain a global presence for fraud prevention and other essential services   For the curious (And if you have read the post till this far) 1. PayPal, Stripe, Square all play different roles in the payment process 2. Many paytechs start by specializing in one area (e.g., online payments) and then expand 3. The number of global companies specialising in verticalized expertise is increasing Let me know if you have any questions!

𝗛𝗼𝘄 𝗗𝗼 𝗢𝗻𝗹𝗶𝗻𝗲 𝗣𝗮𝘆𝗺𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸? Every time a customer clicks checkout or pay online, a lot more happens behind the scenes than meets the eye Let’s break it down step by step 👇 𝗙𝗶𝗿𝘀𝘁: 𝗰𝗮𝗿𝗱𝗵𝗼𝗹𝗱𝗲𝗿 𝗶𝗻𝗶𝘁𝗶𝗮𝘁𝗶𝗼𝗻 It all starts on the merchant’s front end (checkout page) → Customer enters card details → Clicks pay → Payment request/intent is created At this point, the merchant is responsible for securely capturing the card data 𝗛𝗼𝘄 𝗺𝗲𝗿𝗰𝗵𝗮𝗻𝘁𝘀 𝗵𝗮𝗻𝗱𝗹𝗲 𝗰𝗮𝗿𝗱 𝗱𝗮𝘁𝗮 Since cards are regulated under PCI DSS, most merchants delegate compliance to partners like Solidgate to: → Securely collect payment data → Reduce PCI scope → Ensure compliance This is critical, how merchants handle card data directly impacts both risk and conversion 𝗪𝗵𝗲𝗿𝗲 𝗼𝗿𝗰𝗵𝗲𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 𝗰𝗼𝗺𝗲𝘀 𝗶𝗻 This is where real optimization starts. The orchestrator will: → Validate the payment → Tokenize the card → Route the transaction to the best acquiring bank Routing decisions can depend on: → Geography → Authorization rates → Cost optimization → Redundancy / failover This layer determines how efficiently a payment gets approved 𝗛𝗼𝘄 𝗮𝗰𝗾𝘂𝗶𝗿𝗶𝗻𝗴 𝗯𝗮𝗻𝗸𝘀 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝗽𝗮𝘆𝗺𝗲𝗻𝘁𝘀 The acquiring bank receives the transaction and preps it for the card network It will: → Run initial risk checks → Format the transaction → Submit it for authorization The acquirer acts as the merchant’s gateway into the broader card ecosystem 𝗧𝗵𝗲 𝗿𝗼𝗹𝗲 𝗼𝗳 𝗻𝗲𝘁𝘄𝗼𝗿𝗸𝘀 𝗮𝗻𝗱 𝗶𝘀𝘀𝘂𝗲𝗿𝘀 From there, the payment flows through the card network → Schemes route the transaction → The issuing bank receives it → Final authorization decision is made The issuer checks: → Available funds or credit → Fraud signals → Cardholder authentication Then sends back: → Approved ✅ → Declined ❌ All of this happens in just a few seconds 𝗪𝗵𝘆 𝘁𝗵𝗶𝘀 𝗺𝗮𝘁𝘁𝗲𝗿𝘀 Every step in this flow impacts whether a payment succeeds or fails. Small improvements can drive: → Higher authorization rates → Lower fraud → Better user experience And most importantly, more revenue captured Source: Solidgate 🔔 Follow Jason Heister for daily #Fintech and #Payments guides, technical breakdowns, and industry insights

🧩 𝗙𝗿𝗼𝗺 𝗧𝗮𝗽 𝘁𝗼 𝗙𝘂𝗻𝗱𝘀 — 𝘁𝗵𝗲 𝗛𝗶𝗱𝗱𝗲𝗻 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 𝗼𝗳 𝗠𝗼𝗱𝗲𝗿𝗻 𝗣𝗮𝘆𝗺𝗲𝗻𝘁𝘀 Every digital payment starts with a simple action — a tap, a scan, or a click. Behind that moment sits a multi-layer payment ecosystem quietly moving money in milliseconds — with banks, networks, processors, and regulators all in play. This visual shows the end-to-end journey of how money actually moves. 🔐 𝗔𝘂𝘁𝗵𝗼𝗿𝗶𝘇𝗮𝘁𝗶𝗼𝗻 — 𝘄𝗵𝗲𝗿𝗲 𝗿𝗶𝘀𝗸 & 𝘁𝗿𝘂𝘀𝘁 𝗮𝗿𝗲 𝗱𝗲𝗰𝗶𝗱𝗲𝗱 👤 𝗖𝘂𝘀𝘁𝗼𝗺𝗲𝗿 — Initiates a payment using a card or digital wallet 🏪 𝗠𝗲𝗿𝗰𝗵𝗮𝗻𝘁 (𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀) — Captures payment details via POS or online checkout 🔐 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗚𝗮𝘁𝗲𝘄𝗮𝘆 — Encrypts and securely transmits transaction data ⚙️ 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗼𝗿 — Validates the transaction and applies fraud & risk controls 🌐 𝗖𝗮𝗿𝗱 𝗡𝗲𝘁𝘄𝗼𝗿𝗸 — Routes the authorization request to the issuing bank 🏦 𝗜𝘀𝘀𝘂𝗶𝗻𝗴 𝗕𝗮𝗻𝗸 — Checks balance, limits, and risk → approves or declines ⬅️ The authorization response travels back the same path — in real time. 💸 𝗦𝗲𝘁𝘁𝗹𝗲𝗺𝗲𝗻𝘁 — 𝘄𝗵𝗲𝗿𝗲 𝗺𝗼𝗻𝗲𝘆 𝗮𝗰𝘁𝘂𝗮𝗹𝗹𝘆 𝗺𝗼𝘃𝗲𝘀 📤 𝗠𝗲𝗿𝗰𝗵𝗮𝗻𝘁 submits approved transactions 🧮 𝗖𝗹𝗲𝗮𝗿𝗶𝗻𝗴 & 𝗻𝗲𝘁𝘁𝗶𝗻𝗴 take place 🏦 𝗜𝘀𝘀𝘂𝗶𝗻𝗴 𝗕𝗮𝗻𝗸 transfers funds 🏛️ 𝗔𝗰𝗾𝘂𝗶𝗿𝗶𝗻𝗴 𝗕𝗮𝗻𝗸 credits the merchant account ⏱️ Funds arrive 𝗧+𝟭 / 𝗧+𝟮 / 𝗜𝗻𝘀𝘁𝗮𝗻𝘁 — depending on rails and setup 🧠 𝗪𝗵𝘆 𝘁𝗵𝗶𝘀 𝗺𝗮𝘁𝘁𝗲𝗿𝘀 (𝗯𝗮𝗻𝗸𝘀, 𝗿𝗲𝗴𝘂𝗹𝗮𝘁𝗼𝗿𝘀, 𝗖𝗧𝗢𝘀) 💰 Every layer adds 𝗰𝗼𝘀𝘁 ⏳ Every hop adds 𝗹𝗮𝘁𝗲𝗻𝗰𝘆 ⚠️ Every dependency adds 𝗼𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗿𝗶𝘀𝗸 That’s why modern architectures focus on: 🧩 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗵𝘂𝗯𝘀 & 𝗼𝗿𝗰𝗵𝗲𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 🔄 𝗥𝗮𝗶𝗹 𝗮𝗯𝘀𝘁𝗿𝗮𝗰𝘁𝗶𝗼𝗻 (cards, RTP, A2A, cross-border) 📜 𝗘𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗰𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝗰𝗲 & 𝗮𝘂𝗱𝗶𝘁𝗮𝗯𝗶𝗹𝗶𝘁𝘆 ⚡ 𝗥𝗲𝗮𝗹-𝘁𝗶𝗺𝗲 𝘀𝗲𝘁𝘁𝗹𝗲𝗺𝗲𝗻𝘁 & 𝗹𝗶𝗾𝘂𝗶𝗱𝗶𝘁𝘆 𝘃𝗶𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝘆 🏛️ 𝗥𝗲𝗴𝘂𝗹𝗮𝘁𝗼𝗿𝘆 𝗹𝗲𝗻𝘀 🔍 𝗘𝗻𝗱-𝘁𝗼-𝗲𝗻𝗱 transparency across the lifecycle 🛡️ 𝗔𝗠𝗟 / 𝗳𝗿𝗮𝘂𝗱 / 𝗰𝗼𝗻𝘀𝘂𝗺𝗲𝗿 𝗽𝗿𝗼𝘁𝗲𝗰𝘁𝗶𝗼𝗻 by design 📊 𝗧𝗿𝗮𝗰𝗲𝗮𝗯𝗶𝗹𝗶𝘁𝘆 from initiation to settlement 🌍 𝗜𝗻𝘁𝗲𝗿𝗼𝗽𝗲𝗿𝗮𝗯𝗶𝗹𝗶𝘁𝘆 across domestic + cross-border schemes 🧑💻 𝗖𝗧𝗢 𝗹𝗲𝗻𝘀 ⚙️ Fewer 𝗽𝗼𝗶𝗻𝘁-𝘁𝗼-𝗽𝗼𝗶𝗻𝘁 integrations 📐 Standardized 𝗔𝗣𝗜𝘀 & 𝗜𝗦𝗢-𝗮𝗹𝗶𝗴𝗻𝗲𝗱 messaging 🚀 Scale without re-architecting the core 🧪 Faster delivery without breaking regulated systems 🎯 𝗞𝗲𝘆 𝘁𝗮𝗸𝗲𝗮𝘄𝗮𝘆 Payments are not “just cards”. They are 𝗰𝗿𝗶𝘁𝗶𝗰𝗮𝗹 𝗳𝗶𝗻𝗮𝗻𝗰𝗶𝗮𝗹 (and often national) infrastructure. Those who control the 𝗼𝗿𝗰𝗵𝗲𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 𝗹𝗮𝘆𝗲𝗿 ➡️ control 𝗺𝗼𝘃𝗲𝗺𝗲𝗻𝘁, 𝗿𝗲𝘀𝗶𝗹𝗶𝗲𝗻𝗰𝗲, 𝗰𝗼𝘀𝘁, and 𝗰𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝗰𝗲.

Brain Boost Drop #5 📌 𝗧𝗵𝗲 𝗣𝗮𝘆𝗺𝗲𝗻𝘁𝘀 𝗘𝗰𝗼𝘀𝘆𝘀𝘁𝗲𝗺𝘀: 𝗛𝗼𝘄 𝗠𝗼𝗻𝗲𝘆 𝗠𝗼𝘃𝗲𝘀 𝗕𝗲𝗵𝗶𝗻𝗱 𝗧𝗿𝗮𝗻𝘀𝗮𝗰𝘁𝗶𝗼𝗻𝘀. 💡 With my experience in AI, fintech, and scalable system architectures, I’ve worked on modernizing payment systems, optimizing real time transactions, and enhancing fraud detection in financial services. The way money moves behind every transaction is a complex yet fascinating ecosystem, from payment gateways to banks, processors, and networks. Here's a breakdown of how payments work behind the scenes! 💳 🔢 How the Payment Flow Works (Step-by-Step): 0️⃣ Cardholder initiates a transaction using their card. 1️⃣ Merchant accepts the payment and sends it through a Payment Gateway. 2️⃣ The Payment Gateway transmits transaction details to the Acquirer Processor. 3️⃣ Acquirer Processor forwards the request to the Card Network (e.g., Visa, Mastercard). 4️⃣ The Card Network routes the request to the Issuer Processor. 5️⃣ The Issuer Processor checks the Customer Account with the Issuing Bank for approval. 6️⃣ Issuing Bank approves or declines the transaction based on funds and fraud checks. 7️⃣ If approved, funds are transferred, and the merchant gets a Merchant Account deposit. 8️⃣ The transaction is settled, and the payment completes successfully! This process happens in seconds, ensuring smooth, secure digital payments. What are your thoughts on the future of digital payments? Let’s discuss in the comments! 👇 Follow Nikhil Kassetty for more Brain Boost Drops. #Payments #Fintech #DigitalPayments #PaymentProcessing #FinancialServices