API integration management involves setting up and maintaining connections between software applications to ensure smooth data flow and address issues like API changes, dependency management, data mapping, and rate limiting. Native integrations offer full flexibility but can be challenging to scale and maintain, while embedded iPaaS platforms provide centralized management and scalability but require technical expertise. Unified APIs simplify the process by consolidating multiple functions into one interface, with the unified data model easing integration but potentially limiting customization. Merge, a leading unified API solution, addresses these challenges by offering multiple APIs across different software categories, robust maintenance features, and tools for managing customer integrations efficiently.