AEM Sites Developer Professional

These details live on Adobe's official certification page, which redirects to a sign-in screen for anonymous visitors. Create or use an Adobe account, open the AEM Sites Developer Professional page, and read the exam details section there. Treat anything you see on third-party study sites as unverified until you have checked it against Adobe's own page.

Start with the areas you touch least at work. Most developers are strong on components and weak on Dispatcher and caching, or the reverse. Build a short list across architecture, templates and components, Sling/OSGi/JCR, client-side and assets, and caching and deployment, then attack the weakest area first while you still have time to revisit it.

It assumes real project experience rather than tutorial familiarity. Questions tend to describe a scenario and ask which approach or configuration achieves a result, so memorizing API signatures helps less than understanding request flow, resolution order, and inheritance behavior. If you have never deployed behind a Dispatcher or debugged a Sling Model injection, expect to invest extra study time there.

Reading alone is usually not enough. Set up a local AEM author and publish instance, create a template and a component with a dialog, add a Sling Model with an OSGi service dependency, and put a Dispatcher in front. Debugging real resolution and caching problems builds the intuition scenario questions reward.

Learn the request path in order: browser, web server, Dispatcher cache, publish, Sling resolution, then your component. Be able to reason about which rule or header decides whether a response is cached, how invalidation is triggered, and why a stateless, cache-friendly page design matters. Draw the flow on paper until you can reproduce it without notes.

Over-relying on memorized code snippets, ignoring the client-side and asset domain because it feels peripheral, and never practicing Dispatcher configuration are frequent mistakes. Another is studying an older AEM version's behavior: verify current behavior in Adobe's versioned documentation, because APIs and recommended patterns change between releases.

Retake rules, waiting periods, and any fees are set by Adobe and change over time, so confirm them on your Adobe certification account before scheduling. Do not rely on forum posts. Plan your first attempt for when you feel genuinely ready, and keep your study notes so a second attempt costs far less time.

Validity periods and renewal requirements are published by Adobe and are not visible without signing in. Check the official certification page and your Adobe credential account for the current policy, including whether renewal requires an exam, continuing education, or nothing at all. Set a calendar reminder well before any expiry date you find.

No. This introduction and FAQ describe the credential at a high level only; the official Adobe page was not readable without authentication, so no exam parameters could be verified here. Use Adobe's documentation and your own project work as the authoritative sources, and confirm all numbers with Adobe directly.