The passing mark for the DEX-403E exam is 63%, and the official registration fee is USD 200 (standard Salesforce certification fee, varies by region). One practical note: the fee buys a single attempt — a retake is charged in full again. Protect that spend by rehearsing first: drill 432 practice questions at ValidVCE under timed conditions until your scores clear the passing mark with margin, then book.

The DEX-403E exam — officially the Declarative Development for Platform App Builders in Lightning- Extended — is Salesforce's certification test for professionals working with its technologies, and passing it earns the Salesforce Platform APP Builder certification at the Professional level. Because it is vendor-issued and skills-based, employers can compare candidates on it directly — that is what keeps it valuable. It also connects naturally to Salesforce Certified Platform App Builder.

Yes — ValidVCE publishes a free PDF demo of the DEX-403E practice questions, printable if you prefer paper, so you can evaluate the content and verified answers before paying anything. Once you purchase, 365 days of free updates are included, and if the product expires, the update service renews at a 50% discount from your member zone.

The Salesforce Declarative Development for Platform App Builders in Lightning- Extended syllabus spans 5 domains, led by Data Modeling and Management (20% - 24%), App Deployment (10% - 15%), and Salesforce Fundamentals (20% - 24%). The complete weighted outline is in the syllabus section above — it is the map your preparation should follow.

Recommended experience: 6+ months building declarative custom applications on the Salesforce Lightning Platform, and knowledge of Salesforce data model and automation concepts.:contentReference[oaicite:0]{index=0}

Vendor criteria do change, so before scheduling, verify the latest requirements on the official Salesforce exam page.

Delivery first: download immediately after payment, with an email copy arriving within one minute. If 2 hours pass with no email, check spam and contact our support team. There is no limit on how many computers you can install the software on.

If you take the DEX-403E exam within 60 days of purchase and do not pass, the ValidVCE money back guarantee applies: file within 2 days of the exam with a scanned enrollment slip and the official score report (PDF), and the claim is processed within 7 days. The candidate name must match the payer name; the policy excludes exams taken within 3 days of purchase, purchases never used in an actual exam attempt, free materials, and expired orders. If you would rather keep preparing, exchange the product for two free exam packages of equal value and keep the update service on your original purchase.

You will face 60 questions within 105 minutes on the DEX-403E exam. That ratio makes time management a scored skill, and it is best trained offline where you cannot be distracted: run timed mocks in the ValidVCE Windows engine or app, and let the pacing rhythm settle in before exam day.