Designing B2B Credit Management Platforms

Credit Ledger Frameworks

In B2B commerce, transactions rarely settle in cash immediately. Instead, franchises operate on monthly credit ledgers. Architecting these systems requires real-time credit limit verification, invoice aging reports, and automated late penalty trigger hooks in the backend.

Double-Entry Accounting in Node.js

To manage B2B balances, we implement a double-entry ledger system. Every purchase creates two records: a debit to the buyer's accounts payable, and a credit to the supplier's accounts receivable. This ensures balances always equate to zero globally.

async function recordB2BTransaction(buyerId, supplierId, amount, session) {
  await Ledger.create([
    { accountId: buyerId, type: 'DEBIT', amount: amount },
    { accountId: supplierId, type: 'CREDIT', amount: amount }
  ], { session });
}

Automated Aging Reports & CRON Jobs

Using Node-Cron or AWS EventBridge, we schedule nightly jobs that scan the ledger for unpaid invoices older than 30, 60, or 90 days. These jobs automatically calculate interest penalties, append the new charges to the ledger, and dispatch email alerts.