Start with the official SAP certification information and the recommended learning resources. Spend the most time on job requisition configuration, candidate profiles, application workflows, recruiting permissions, candidate screening, and offer management.
The SAP SuccessFactors Recruiting: Recruiter Experience preparation guide gives you the structure, but the confidence comes from doing the exercises yourself. Set a realistic study schedule and break the syllabus into small objectives. Practice explaining how each configuration component meets a business requirement. When a concept is hard, go back to the SAP documentation and work through more examples.
To check your progress, you can use practice questions and study resources from The Exam Questions. They help you review key topics and find gaps. Keep a record of your mistakes, follow your revision plan, and put extra time into the subjects where you are weakest.