SAP RAP Mastery with Aditya Gupta

Master SAP RAP: 5 Real-World Projects + 100 Interview Questions

Stop watching RAP tutorials. Start building like a consultant, and answer like one in the interview.

Most SAP developers know RAP exists. Far fewer can build a draft-enabled app from scratch, explain why they chose early over late numbering, or answer "what's the difference between BDEF and DCL authorization?" without hesitating. This guide closes that gap in one place.

What's inside

Part 1: Five hands-on projects, written like real project tickets

• Leave Request App: a managed RAP BO with draft, determinations, validations, actions and feature control
• UI annotations: turn a plain app into a polished Fiori Elements experience, with no UI5 code
• Bulk Stock Adjustment Web API: batch processing, partial failures, idempotency and OData V4 testing
• Course Booking (unmanaged RAP): wrap legacy function modules with a buffer, locks and a saver class
• Secure and test: DCL, global and instance authorization, and ABAP Unit with the RAP test doubles

Each task gives you a business scenario, requirements, hints rather than copy-paste solutions, acceptance criteria and stretch goals.

Part 2: 100 interview questions in 10 topics

Fundamentals, CDS, behavior definitions, implementation classes, draft, EML, authorization, services and UI, unmanaged scenarios, and extensibility and testing. Every question has a clear answer, and most have a worked example or code snippet.

How to get the most out of it

1. Build first. Do Task 1 before reading Part 2. Concepts stick when you've fought with them.
2. Quiz yourself aloud. Cover the answer, say yours, then compare. Interviews are spoken, so practice speaking.
3. Link the two parts. When you hit a question on draft or EML, go back to your Leave app and find where you used it.
4. Keep a "surprises" list. Every error you debug becomes a story you can tell in an interview.
5. Finish with the stretch goals. They're where you move from "I followed a task" to "I can design this."

Who it's for

• ABAP developers moving from classic ABAP or SEGW to RAP
• SAP consultants preparing for RAP or S/4HANA interviews
• Developers who finished the beginner tutorials and want something realistic
• Team leads looking for practice material for juniors

Why it's worth your time

• Practical, not theoretical: you build five working scenarios
• Interview-focused: 100 questions you can revise in a few focused sessions
• One document: no jumping between blogs, notes and PDFs
• Self-paced: use it for a weekend sprint or a month of evenings

Prepared by Aditya Gupta, SAP Technical Consultant.