The AWS Certified Solutions Architect - Professional is an advanced-level certification offered by Amazon Web Services (AWS). It is designed for individuals who have extensive experience in designing and deploying AWS solutions and architectures at an enterprise level. Before attempting the AWS Certified Solutions Architect - Professional exam, it is recommended to have practical experience in architecting and operating AWS solutions. AWS also suggests having achieved the AWS Certified Solutions Architect - Associate certification as a prerequisite, although it is not mandatory.