Salesforce DEX-450 Exam : Programmatic Development using Apex and Visualforce in Lightning Experience

DEX-450
  • Exam Code: DEX-450
  • Exam Name: Programmatic Development using Apex and Visualforce in Lightning Experience
  • Updated: Oct 13, 2026
  • Q & A: 202 Questions and Answers

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About Salesforce DEX-450 Exam

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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/

Introduction to Salesforce DEX-450 Exam

This qualification concentrates on the programmer's validation of abilities, such as the programming of programs. Salesforce DEX-450 certification acknowledges that the applicant has the potential to conform his / her Salesforce applications to the heart of the Pinnacle programming language and the visual power diagram. The credential offers a better indicator of the competences which you have established to provide prospective employers. Professionals need to gain functional expertise in constructing and programming data objects (sObjectiles) to retrieve, modify and store data from these objects. Specify custom logic with Apex triggers and classes and use the built-in testing system to test this logic. This Guide covers all facets of the DEX-450 Test, the salary of the accredited specialist Salesforce DEX-450 and all the aspects of the Salesforce DEX-450 certification.

The Salesforce DEX-450 exam is a competency qualification test that acknowledges your capability growth. You need industry expertise to attempt the test. Professionals should execute the following duties following certification:

  • Describe how the trigger code functions in the Save Execution Order
  • Develop programmatic implementations that benefit from declarative personalizations
  • Using a declarative GUI to build and change subjects
  • Write customizations of business logic using triggers and classes from Apex. SOQL and DML are used with these customizations.
  • Describe a range of the main features of multi-tenant programme architecture
  • Using the combined Apex and Visual Powers evaluation system.
  • Write Visualforce and code for user interface setup

For more info read reference:

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

How to Study the Salesforce DEX-450 Exam

The DEX-450 Test can be prepared in several respects. There are many forms to train for this test. Aspirants can select the PDFs available on the official website of Salesforce and they are also able to view videos online. The Qualification Questions Team strongly maintains that information obtained from multiple testing materials and references must be tested using high-quality evaluation engines when they fulfil the actual test. Before being greenlit, all our study material is confirmed repeatedly by experts.DEX-450 exam dumps of qualification-questions will be continuously revised, so the DEX-450 Test will be mirrored into the Dex-450 practice exams of any changes to the Salesforce Agile Research Certification materials. Expert team on Exam4Tests advises that you take quality notes on these subjects and that you should not neglect to follow DEX-450 exam dumps, which has been written by our expert staff.

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With the aid of DEX-450 exam dumps, your preparation will be well enough for the DEX-450 certification. There is no problem to pass the DEX-450 exam test.

Salesforce DEX-450 Exam Syllabus Topics:

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

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