"Payment functions" refer to the various capabilities that software offers to accept and process payments. Typical payment functions include integrating payment methods such as credit cards, debit cards, bank transfers, PayPal, or other electronic payment methods, securely processing payment transactions, managing payment information and customer accounts, generating invoices and payment requests, providing billing and reporting functions, and complying with security standards and legal requirements in payment processing.
Typical functions of software in the "payment functions" domain include: