Billing and invoicing refer to the process of generating, sending, and managing customer payments. This includes creating invoices, tracking due dates, processing payments, and managing financial records. Many modern CRMs integrate billing solutions that automate invoice generation, send payment reminders, and sync with accounting software. Businesses benefit from automated invoicing by reducing errors, improving cash flow management, and ensuring timely payments. CRM-integrated invoicing also provides detailed financial reporting and customer transaction history.