Build Applications Programmatically on the Salesforce Platform Training

Salesforce DEX450 Training

Master the art of customizing/designing applications programmatically on the Salesforce Platform with the 5-day Build Applications Programmatically DEX450 course. Our industry-experienced accredited trainers cover all the relevant aspects while providing guidance for the Salesforce Platform Developer I credential.


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Salesforce DEX450 Course Overview

Vinsys' platform experts introduce you to Salesforce’s programming language, Apex, and Visualforce markup. The in-depth course enables you to customize Salesforce applications utilizing code, and explore Apex interactions with declarative customizations on the platform.

The detailed Salesforce training explains how to retrieve, manipulate, and store data programmatically in data objects (sObjects), write/test the custom logic, write Visualforce pages to customize the user interface, and deploy your solutions to another environment.

You benefit from an overview of the declarative automation tools available on the platform, a brief introduction to the Lightning Component framework, and explore the nuances of working on a multi-tenant platform to meet business demands.

Our Building Applications Programmatically course also strengthens your foundation for earning the Salesforce Platform Developer I certification. 

Course Curriculum

Course Objectives

  • Learning modern tools for developing on the Salesforce platform utilizing Visual Studio Code, the Salesforce Extension Pack, and the Salesforce CLI.
  • Writing business logic customizations using Apex triggers and classes (customizations will use SOQL and DML). 
  • Designing programmatic solutions taking advantage of declarative customizations.
  • Describing how your trigger code works within the basics of the Save Order of Execution.
  • Explaining the fundamental aspects of designing programs on a multi-tenant platform.
  • Writing Visualforce markup and code for customizing the user interface.
  • Using the built-in testing framework for testing Apex and Visualforce


  • Programmatic Developers interested in writing programmatic customizations to business logic and UI layers, utilizing Apex/Visualforce. 
  • Those aiming for Salesforce's Platform Developer I accreditation. 


  • Knowledge of core object-oriented programming concepts.
  • Experience in building declarative solutions on the Salesforce Platform

Assists with the Following Certification Exams

•    Exam:               .    Salesforce Certified Platform Developer I.
•    Skills Tested:          Developer Fundamentals, Process Automation and Logic,
                                    User Interface, Testing, Debugging & Deployment.
•    Certification:          Salesforce Platform Developer I.
•    Exam Format:        60 Multiple-choice/Multiple-select Questions & a Pass Score of 68%.                                                         
•    Duration:               105 Minutes. 

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Training Options


Virtual Instructor-led Sessions

  • Instructor led Online Training
  • Experienced Subject Matter Experts
  • Approved and Quality Ensured training Material
  • 24*7 learner assistance and support


Customized to your team's need

  • Customized Training Across Various Domains
  • Instructor Led Skill Development Program
  • Ensure Maximum ROI for Corporates
  • 24*7 Learner Assistance and Support

Course Outline

  • Creating Formula Fields.
  • Creating Roll-up Summary Fields.
  • Understanding Record Types.
  • Reviewing Other Automation Tools.
  • Building a Data Model on the Salesforce Platform.
  • Describing Key Aspects of Apex Differentiating it from other Languages, like Java and C#.
  • Explaining Why Apex Transactions and Governor Limits Must be Considered When Writing Apex.
  • Executing Simple Apex.
  • Using sObject/Primitive Data Types and Basic Control Statements in Apex.
  • Writing a Basic Query using Salesforce’s Query Language, SOQL.
  • Processing the Result of a Query in Apex.
  • Creating a Query Dynamically at Run-time.
  • Using SOQL to Query Parent-child Relationships.
  • Describing a Relationship Query.
  • Writing a Query that Traverses a Child-to-parent Relationship.
  • Writing a Query that Traverses a Parent-to-child Relationship.
  • Using SOSL to Search Data.
  • Listing the Differences between the Ways you can Invoke DML Operations.
  • Writing Apex to Invoke DML Operations and Handle DML Errors.
  • Defining Deployment.
  • Deploying Code using Change Sets.
  • Using the Ant Migration Tool.
  • Reviewing Managed/Unmanaged Packages.
  • Exploring Salesforce DX.
  • Explaining the Trigger Usage.
  • Describing the Syntax of a Trigger Definition.
  • Using Trigger Context Variables.
  • Describing How Apex Classes are Used.
  • Defining an Apex Class.
  • Determining What Data an Apex Class can Access.
  • Explaining the Key Points in the Order of Execution.
  • Describing How Triggers Fit into and can be Impacted by the Order of Execution.
  • The Lifecycle of an Apex Transaction and Memory Lifecycle for Static Attributes.
  • Using Platform Events for Immediate Error Logging.
  • Describing the Apex Testing Framework.
  • Creating Test Data.
  • Writing/Running an Apex Test.
  • Testing Best Practices.
  • Explaining Best Practices for Writing an Easy to Maintain/Extend Code.
  • Writing Triggers/Classes Assuming Batches of Data as Input.
  • Writing a Code Working Efficiently with the Database in Querying and using DML.
  • Listing the Declarative Mechanisms to Implement Complex Business Logic, Mentioning the Types of Problems they’re Best used for, and their Limitations.
  • Explaining How you can use Declarative Functionality to Improve Programmatic Solutions.
  • Creating a Visualforce Page.
  • Referencing a Standard Controller.
  • Launching a Visualforce Page using a Custom Button.
  • Displaying Data from a Record in a Visualforce Page.
  • Referencing Custom Controllers and Controller Extensions.
  • Working with List Controllers.
  • Describing Common Limit Issues and Security Concerns.
  • Explaining Strategies for Testing Visualforce Controllers.
  • Writing Tests for Controller Constructors, Action Methods, Getters, Setters, and Properties.
  • Creating/Surfacing Aura and Lightning Web Components.

Course Reviews


Discussing promising ideas for new features, thinking them through, sketching them out, starting coding for implementing the feature, deploying it in a test environment, testing it, and noting the challenges to address or enhancements to incorporate.

Salesforce Developers use their programmatic and declarative skills to extend/customize your applications on the Lightning platform. They excel at cracking codes on tricky challenges and help you automate repetitive tasks.

Salesforce Developer job opportunities have witnessed more than 200% annual growth relative to the developer market in the last 5 years.

The figures could vary depending on the country of work; however, the US average salaries are generally around the $108,000 mark. 

Yes, the general skills include Communication, Customer Service, Writing, Problem-solving, Project Management, and Organizational abilities. In addition, Salesforce Developers must also carry technical/specialized capabilities focusing on the Salesforce Platform, Lightning Web Components, JavaScript, Application Lifecycle Management, Object-oriented Programming, Apex, System Integration, SOQL/SOSL, and Web Services. 

No, please note that the DEX450 course is not attached to a certification exam. Instead, it should merely act as a learning experience improving your basics for securing the Salesforce Developer 1 accreditation.

No, you may schedule it onsite at a test-centre as well. 

Besides being a globally-respected Individual/Corporate IT training organization, Vinsys is also admired as the top Salesforce learning provider. Its unmatchable offerings, accredited instructors, customizable skilling programs and round-the-clock support ensure the most detailed upskilling experiences, a must for capitalizing on valuable programmatic customization opportunities.