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# Subsequent Transactions

## Docs

- [Subsequent Transactions](https://docs.coinflow.cash/guides/checkout/payment-scenarios/subsequent-transactions/identifying-the-type-of-subsequent-transaction.md): Understanding the difference between initial payments and subsequent transactions
- [🔐 Zero Authorization](https://docs.coinflow.cash/guides/checkout/payment-scenarios/subsequent-transactions/zero-authorization.md): Learn how to validate and store customer payment credentials without charging them using Zero Authorization.
- [💳 Card on File Transactions](https://docs.coinflow.cash/guides/checkout/payment-scenarios/subsequent-transactions/card-on-file.md): Learn how to securely store customer payment credentials and enable one-click checkout experiences.
- [🏪 Merchant Initiated Transactions](https://docs.coinflow.cash/guides/checkout/payment-scenarios/subsequent-transactions/merchant-initiated-transactions.md): Learn how to charge customers without their active participation using stored credentials from a previous authorization.
- [📱 Apple Pay Subsequent Transactions](https://docs.coinflow.cash/guides/checkout/payment-scenarios/subsequent-transactions/apple-pay.md): Learn how to charge a customer's saved Apple Pay card for subsequent purchases without re-presenting the Apple Pay sheet.