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Updated: Oct 05, 2026

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Salesforce DEX-450 Exam Overview:

Certification Vendor:Salesforce
Exam Name:Programmatic Development using Apex and Visualforce in Lightning Experience
Exam Number:DEX-450
Exam Format:Course assessment (format varies by provider), Multiple choice questions (typical Salesforce training exams)
Available Languages:English
Related Certifications:Salesforce Platform Developer II
Salesforce Platform Developer I
Recommended Training:Salesforce Apex Developer Guide
Salesforce Visualforce Developer Guide
Exam Registration:Salesforce Trailhead Training
Sample Questions:Salesforce DEX-450 Sample Questions
Exam Way:Instructor-led training assessment or course completion exam (varies by training provider)
Pre Condition:Basic understanding of object-oriented programming and database concepts is recommended. Prior Salesforce experience is helpful but not strictly required.
Official Syllabus URL:https://trailhead.salesforce.com

Salesforce DEX-450 Certification Path

You must get an idea of exactly what this certification is, before investing your valuable time, effort, or money in Salesforce. The demand and the need for Salesforce certified professionals are rapidly growing and so Salesforce Admin Certification is becoming more and more popular. Different types of online training sessions are provided such as Intellipaat 's online training sessions for the Salesforce Admin Qualification cost around $510 USD. It is instructor-led teaching by subject professionals working in major organizations. This style of training includes live sessions with the teacher, along with a forum where you can clear all your course-based doubts.

Self-paced sessions are also offered at the cost of $227 USD. This training mode involves pre-recorded video sessions. You can conveniently return to these talks and revisit the subjects you have skipped whether you have any difficulties with the lectures or have difficulty keeping up with the online meetings. You will also use these sessions to finish your exercise at your speed while you access these online lessons throughout your life.

Who should take the Salesforce DEX-450 Exam

This course is designed for programme developers starting on the Salesforce platform who require programming customizations on Apex and Visualforce business logic as well as on user interface layers. There are no prerequisites for Salesforce DEX-450 Exam.

  • Programmatic developers.

Reference: https://trailhead.salesforce.com/en/academy/classes/dex450-build-applications-programmatically-on-the-salesforce-platform/

Salesforce DEX-450 Exam Syllabus Topics:

SectionObjectives
Topic 1: Testing and Debugging- Apex testing framework
  • 1. Code coverage requirements
    • 2. Test classes and methods
      - Debugging techniques
      • 1. System debug logs
        Topic 2: Apex Triggers and Automation- Trigger design patterns
        • 1. Before and after triggers
          • 2. Bulkified trigger design
            - Order of execution
            • 1. Salesforce transaction lifecycle
              Topic 3: Visualforce Development- Pages and controllers
              • 1. Custom controllers and extensions
                • 2. Standard controllers
                  - UI components
                  • 1. Visualforce components and expressions
                    Topic 4: Database and SOQL/SOSL- DML operations
                    • 1. Insert, update, delete, upsert
                      • 2. Bulk operations and limits
                        - SOQL queries
                        • 1. Basic and advanced query filtering
                          • 2. Relationship queries
                            Topic 5: Security and Best Practices- Security model
                            • 1. Sharing rules and with sharing keyword
                              • 2. CRUD and FLS enforcement
                                - Governor limits
                                • 1. Avoiding limit exceptions
                                  Topic 6: Apex Programming Fundamentals- Apex syntax and object-oriented concepts
                                  • 1. Classes, methods, and variables
                                    • 2. Access modifiers and encapsulation
                                      - Collections and data handling
                                      • 1. Lists, Sets, and Maps
                                        • 2. Iteration and data manipulation

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