Acquia Developer (D10)
Acquia Certified Drupal 10 Developer Exam
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ExploreAbout this exam
The Acquia Certified Drupal 10 Developer credential is a professional certification aimed at developers who build and maintain Drupal 10 sites and who want independent, third-party validation of their skills. It is intended for working developers - typically those with hands-on experience writing custom modules and themes and configuring Drupal site architecture - rather than for beginners or for purely editorial users. Because the exam is built around Drupal 10 specifically, preparation should focus on Drupal 10 APIs and conventions rather than older versions. The published blueprint groups the material into five weighted areas: Drupal fundamentals and site building (20%), module and theme development (25%), Drupal APIs and data modeling (25%), performance, caching and security (15%), and the Acquia platform and deployment workflow (15%). The largest shares go to development and API work, so a candidate should expect the bulk of the exam to test code-level understanding rather than clicking through the administrative UI. A practical preparation path is to build a small custom module and theme end to end, practice the entity, plugin, configuration, and render APIs, work with caching layers and access control, and learn the Acquia deployment workflow on a real codebase. Verify all current exam logistics directly with Acquia before booking.
What you'll study
About Acquia Developer (D10) preparation
How is the exam structured?
The blueprint splits content across five domains weighted 20% / 25% / 25% / 15% / 15% for fundamentals and site building, module and theme development, APIs and data modeling, performance/caching/security, and the Acquia platform and deployment workflow. Confirm the current question count, format, and time limit with Acquia, as those details are not published in the source material reviewed here.
How hard is it?
It is a professional-level exam, not an entry test. Twenty-five percent of the weight sits on module and theme development and another twenty-five on APIs and data modeling, so candidates who only know the administrative interface usually struggle. Expect questions that require you to reason about how Drupal 10 code behaves, not just to recall where a setting lives.
What should I study first?
Start with module and theme development alongside the Drupal APIs, since together they carry half the weight. Build a custom module with a plugin, an entity or field interaction, and a service, then theme its output with Twig. Add caching and access control once the fundamentals are solid, and leave Acquia platform and deployment workflow for last.
Why do candidates fail?
The most common failure modes are studying Drupal 7 or 8 material instead of Drupal 10, over-preparing on site building while neglecting code-level APIs, and skipping caching and access control entirely. Another frequent problem is never having deployed through a real Acquia workflow, which leaves the platform domain weak despite its fifteen percent weight.
Can I retake it if I fail?
Retake rules, waiting periods, and any fees are set by Acquia and were not available in the source material reviewed for this page, so they are not stated here. Check the official certification page or contact Acquia support before scheduling so you know the policy and budget accordingly.
How long is the certification valid?
Validity periods and recertification requirements are determined by Acquia and are not published in the material reviewed here. Because the credential is tied to Drupal 10 specifically, plan to confirm the current validity window and any upgrade path with Acquia, especially if a newer major Drupal version becomes the certification target.
What does it cost and how do I book?
The exam fee, scheduling process, delivery format, and whether it is taken remotely or at a testing center are all set by Acquia. Those details were not available in the source material reviewed, so they are not quoted here. Go directly to Acquia's certification pages or their support portal for current pricing and booking.
Do I need Acquia hosting experience?
Fifteen percent of the blueprint covers the Acquia platform and deployment workflow, so some familiarity helps. You do not need to be a platform specialist, but you should understand the code deployment path, environment structure, and how configuration moves between environments. Practicing on a real Acquia-hosted codebase is the fastest way to cover this domain.
Is this page an official study guide?
No. This is independent preparation material and is not affiliated with or endorsed by Acquia. Domain weights are drawn from a published exam blueprint, but all logistics such as price, duration, passing score, and retake policy should be verified with Acquia directly, since exam details change between revisions.