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Last Updated: Oct 04, 2026

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

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The price of the Salesforce DEX-450 certification is $375 USD, for more information related to the Salesforce DEX-450 Exam please visit Salesforce website.

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Salesforce DEX-450 Certification leaning site Salesforce DEX-450 Certification resources

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.

Salesforce DEX-450 Exam Syllabus Topics:

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

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