Some common challenges in system integration include: Data incompatibility: Systems may use different data formats, protocols, or standards, making it difficult to exchange information. Integration complexity: Integrating multiple systems with different architectures, technologies, and interfaces can be complex and time-consuming. Legacy systems: Older systems may lack modern integration capabilities or have limited documentation, making integration more challenging. Security and privacy concerns: Integrating systems requires ensuring the security and privacy of sensitive data throughout the integration process. Scalability and performance: Integrating systems should consider scalability and performance requirements to handle increased data volumes and user loads.