How do SaaS services integrate with existing systems?

SaaS services integrate with existing systems primarily through APIs (Application Programming Interfaces), which allow different software applications to communicate and exchange data. Many SaaS providers also offer native integrations with popular business tools (e.g., CRM, ERP, accounting software) or provide integration platforms as a service (iPaaS) solutions. These integrations enable seamless data flow, automate workflows, and create a unified ecosystem for businesses, reducing manual data entry and improving overall operational efficiency across various software tools.