Magento 2 Payment Methods handle refund and capture flows through clear order actions. Payments can be captured at order time or later from the admin panel. Partial or full captures are supported based on gateway rules. Refunds are processed using credit memos. Magento 2 Payment Methods update order status after each action. Stock levels adjust after refunds. Transaction details are logged for review. Failed actions show error messages. This flow helps track payments, reduces mistakes, and keeps finance records accurate for audits, reports, and daily store operations without extra manual checks.