Composable architecture emphasizes the efficiency of assembling existing building blocks rather than creating functions from scratch, which modern B2B SaaS products utilize through components like authentication platforms and cloud infrastructure. However, challenges arise when integrating with customer tech stacks, as custom integrations often lead to complexity and inefficiency. An embedded Integration Platform as a Service (iPaaS) offers a solution by providing a structured platform with reusable layers—connection, orchestration, and customer UX—facilitating scalable, secure, and native integrations. This approach transforms integrations from custom projects into manageable, composable features that enhance product offerings and streamline development, ultimately allowing teams to focus on product differentiation while maintaining consistent user experiences. By leveraging embedded iPaaS, like Prismatic, SaaS companies can efficiently manage integrations, enabling faster deployment, improved support, and enhanced customer satisfaction without overburdening their engineering teams.