It is good to hear that you are looking forward to switch your career from SAP developer to Cloud computing. There are many ways to learn this technology like online tutorials, books, articles and so on. But best way is to go for instructor-led training. For that I suggest you to go with Intellipaat which is offering the best AWS DevOps Certification Training Course in collaboration with IBM. This training will help you to learn various concepts of cloud computing from very basic level to mastering advanced levels. This training helps you to clear various cloud certifications and helps you to become a certified cloud professional with all the required skills.
Along with that do check out this video on how SAP developer Mahalakshmi switched her career into cloud computing with the help of Intellipaat training -