Programmatic Development Using Apex and Visualforce (DEX 450) Intermediate
Programmatic Development Using Apex and Visualforce (DEX 450) by Salesforce equips experienced developers with advanced skills to build custom business logic and dynamic user interfaces using Apex and Visualforce. Designed for programmatic developers aiming to extend Salesforce beyond declarative tools, it solves the growing need for code-level customization in complex enterprise environments. With over 75,000 certified Salesforce developers globally and demand rising for senior roles, this course bridges the gap between standard configuration and scalable, maintainable code solutions.
This course prepares learners for the Salesforce Platform Developer I certification, enhancing career advancement in high-demand roles across the Salesforce ecosystem. Koenig Solutions offers official vendor-authorized courseware with Guaranteed-to-Run dates, ensuring reliable scheduling. Master Apex and Visualforce to deliver robust, production-grade applications that meet evolving enterprise needs.
Training Formats & Pricing
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Course Overview
The Programmatic Development Using Apex and Visualforce (DEX 450) course by Salesforce is designed for developers preparing for the Salesforce Certified Platform Developer I (PD1) exam. This intensive training equips learners with the skills to build custom business logic and user interfaces using Apex and Visualforce on the Lightning Platform. Ideal for roles such as Salesforce Developers, Application Engineers, and Customization Specialists, the course addresses critical demand in the ecosystem—over 150,000 Salesforce-related job postings were listed on major employment sites in 2025, many requiring PD1 certification. Participants gain hands-on experience in programmatic solutions that extend Salesforce functionality beyond declarative tools.
Students engage with core Salesforce technologies including Apex, Visualforce, SOQL, SOSL, Lightning Web Components, and Salesforce DX. The course includes extensive hands-on labs using the Salesforce Developer Console and VS Code with the Salesforce Extension Pack, simulating real development environments. Learners build a full-featured customer management application that incorporates custom Apex controllers, Visualforce pages with standard and custom controllers, and robust test classes achieving high code coverage. A key project involves debugging and optimizing triggers within the Salesforce order of execution, reinforcing best practices for governor limit compliance and transactional integrity in a multi-tenant architecture.
DEX 450 directly prepares candidates for the Salesforce Certified Platform Developer I credential, one of the most recognized certifications in the Salesforce ecosystem, validating essential coding and customization expertise. Certified developers command competitive salaries, with U.S. averages ranging from $117,000 for mid-level roles to $145,000 for senior positions, according to 2025 labor market data. Koenig Solutions enhances this path with Guaranteed-to-Run batches, official Salesforce courseware, and access to 1-on-1 mentoring, ensuring learners master both exam concepts and real-world application. Completing this course positions developers to lead scalable, secure, and maintainable Salesforce implementations across enterprise environments.
What You'll Learn
Skills You'll Gain
Prerequisites
- One year of programming experience in Java or another object-oriented language is recommended for the Salesforce Programmatic Development Using Apex and Visualforce (DEX 450) course.
- A basic understanding of relational database concepts, including data modeling and normalization, will help you grasp Salesforce data structures.
- Proficiency in SQL for querying and managing data is beneficial for mastering Salesforce data manipulation techniques.
- Familiarity with HTML for designing and structuring web content supports learning Visualforce page development.
- Working knowledge of JavaScript for client-side scripting enhances your ability to create dynamic Salesforce applications.
- Experience building declarative solutions on the Salesforce platform, such as custom objects, fields, and page layouts, will accelerate your learning in this Salesforce certification course.
Certification Exam
Everything you need to know about the DEX450 certification exam
Course Curriculum
Structured learning with hands-on labs and real-world scenarios
1
Day 1– Data Modeling with Salesforce
2
Day 2– Programmatic Development Using Apex
3
Day 3– Apex Triggers and DML Operations
4
Day 4– Apex Classes and Testing Frameworks
5
Day 5– Visualforce Development and Deployment
What's Included in Your Training
Every enrollment comes packed with resources to maximise your learning and exam success
Exam Preparation Materials
Practice Test Questions (200+)
Certificate of Completion
Post-Training Support (30 days)
Session Recording Access
Free Rescheduling (7+ days notice)
Career Outcomes
of DEX450 certified professionals report career advancement within 6 months
Salary Impact
Average salary increase reported after obtaining the DEX450 certification
*Source: Glassdoor / LinkedIn 2025
Job Roles
- Salesforce Developer
- Apex Developer
- Visualforce Developer
- Salesforce Platform Engineer
- Salesforce Application Developer
- Salesforce Technical Consultant
Companies Hiring
and 5,000+ organizations worldwide seeking DEX450 certified professionals
Course Student Reviews
Real results from IT professionals who trained with Koenig — rated 4.9/5 from 18,400+ verified reviews.
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★★★★★
“Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”
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“The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”
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“From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”
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“As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”
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“SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”
SC-300 Certified ✓ Verified -
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“AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”
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“DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”
DP-600 Certified ✓ Verified -
★★★★★
“Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”
AZ-400 Team Training ✓ Verified -
★★★★★
“Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”
AZ-104 Certified ✓ Verified -
★★★★★
“I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”
Enterprise Client ✓ Verified -
★★★★★
“The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”
PL-300 Certified ✓ Verified -
★★★★★
“From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”
AZ-305 Expert ✓ Verified -
★★★★★
“As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”
100+ Learners Trained ✓ Verified -
★★★★★
“SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”
SC-300 Certified ✓ Verified -
★★★★★
“AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”
AI-102 Certified ✓ Verified -
★★★★★
“DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”
DP-600 Certified ✓ Verified -
★★★★★
“Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”
AZ-400 Team Training ✓ Verified
-
★★★★★
“Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”
AZ-104 Certified ✓ Verified -
★★★★★
“I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”
Enterprise Client ✓ Verified -
★★★★★
“The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”
PL-300 Certified ✓ Verified -
★★★★★
“Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”
AZ-104 Certified ✓ Verified -
★★★★★
“I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”
Enterprise Client ✓ Verified -
★★★★★
“The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”
PL-300 Certified ✓ Verified
-
★★★★★
“From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”
AZ-305 Expert ✓ Verified -
★★★★★
“As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”
100+ Learners Trained ✓ Verified -
★★★★★
“SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”
SC-300 Certified ✓ Verified -
★★★★★
“From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”
AZ-305 Expert ✓ Verified -
★★★★★
“As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”
100+ Learners Trained ✓ Verified -
★★★★★
“SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”
SC-300 Certified ✓ Verified
-
★★★★★
“AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”
AI-102 Certified ✓ Verified -
★★★★★
“DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”
DP-600 Certified ✓ Verified -
★★★★★
“Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”
AZ-400 Team Training ✓ Verified -
★★★★★
“AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”
AI-102 Certified ✓ Verified -
★★★★★
“DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”
DP-600 Certified ✓ Verified -
★★★★★
“Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”
AZ-400 Team Training ✓ Verified
Frequently Asked Questions
Everything you need to know about the DEX450 training course
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