Declarative Development for Platform App Builders in Lightning Experience (DEX403) Intermediate
Declarative Development for Platform App Builders in Lightning Experience (DEX403) by Salesforce teaches app builders to design, build, and deploy custom applications using declarative tools—no code required. Aimed at administrators, developers, and business analysts, it solves the challenge of rapidly customizing Salesforce to meet evolving business needs. With over 3 million Salesforce Trailblazers certified globally, demand for certified Platform App Builders continues to grow across industries.
This course prepares learners for the Salesforce Certified Platform App Builder credential, enhancing career opportunities in cloud application development. Koenig Solutions offers 1-on-1 training with official vendor-authorized courseware, ensuring personalized, in-depth mastery. Graduates gain the expertise to streamline business processes and drive digital transformation.
Training Formats & Pricing
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Course Overview
The Declarative Development for Platform App Builders in Lightning Experience (DEX403) by Salesforce is a foundational course designed for developers and administrators seeking to master Salesforce's declarative tools to build custom applications without writing code. Aligned with the Salesforce Certified Platform App Builder certification exam, this course serves roles such as App Builder, System Administrator, and Business Analyst. With over 150,000 companies worldwide using Salesforce, including 90% of Fortune 500 organizations, demand for certified declarative developers continues to grow, making this skillset essential for professionals entering or advancing in the Salesforce ecosystem.
Students engage with core Salesforce technologies including Lightning App Builder, Flow Builder, Process Builder, Approval Processes, and the Salesforce Data Model within a hands-on Trailhead Playground environment. Through guided labs, learners configure custom objects, design page layouts, automate business processes using screen and record-triggered flows, and implement security controls like profiles and sharing rules. A key project involves building a fully functional multi-user application from scratch, incorporating validation rules, dynamic Lightning pages, and end-to-end automation—mirroring real-world implementation scenarios faced by Salesforce consultants and developers in enterprise environments.
This course prepares candidates for the widely recognized Salesforce Certified Platform App Builder credential, which has become a benchmark for declarative development expertise in the CRM industry. Certified professionals report average salaries ranging from $80,000 to $110,000 annually, with higher earnings in major tech markets. Koenig Solutions enhances preparation with Guaranteed-to-Run live training, official Salesforce courseware, and 1-on-1 mentoring, ensuring deep mastery. Completing the Declarative Development for Platform App Builders in Lightning Experience (DEX403) opens pathways to roles in application development, system administration, and digital transformation, positioning learners at the forefront of low-code innovation on the Salesforce platform.
What You'll Learn
Prerequisites
- Salesforce Certified Platform App Builder credential is the recommended baseline to ensure foundational knowledge
- Strong understanding of Salesforce declarative tools, specifically Flow and Lightning App Builder
- Experience working with relational databases and data modeling within Salesforce
- Comprehensive understanding of Security and Access controls, including Profiles, Permission Sets, and Organization-Wide Defaults (OWDs)
- Understanding of custom objects, fields, and relationships in Salesforce
- Completion of Trailhead modules on Lightning App Builder and UI customization in Salesforce Lightning Experience
Certification Exam
Everything you need to know about the DEX403 certification exam
Course Curriculum
Structured learning with hands-on labs and real-world scenarios
1
Day 1– Mastering Data Model Development
2
Day 2– Lightning User Interface Development
3
Day 3– Security and Access Control
4
Day 4– Flow Automation for DEX403
5
Day 5– Advanced Automation 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 DEX403 certified professionals report career advancement within 6 months
Salary Impact
Average salary increase reported after obtaining the DEX403 certification
*Source: Glassdoor / LinkedIn 2025
Job Roles
- Salesforce App Builder
- Platform App Builder Consultant
- Declarative Developer
- Salesforce Business Analyst
- Low-Code Application Developer
- Salesforce Functional Consultant
Companies Hiring
and 5,000+ organizations worldwide seeking DEX403 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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“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 -
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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.”
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 -
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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.”
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 -
★★★★★
“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 DEX403 training course
Is the certification exam included in the Declarative Development for Platform App Builders in Lightning Experience (DEX403) course, and what is the exam fee?
What training formats does Koenig offer for DEX403, and are they Guaranteed-to-Run?
How long is lab access provided, and what environment is used for DEX403 training?
What is Koenig's rescheduling and cancellation policy for the DEX403 course?
How many questions are on the DEX403 exam, and what is the passing score and time limit?
How long is the Salesforce Certified Platform App Builder certification valid, and what is the renewal process?
Does Koenig provide post-training support after completing the DEX403 course?
What are the prerequisites or recommended experience for the DEX403 course?
What is the typical salary impact or career benefit after earning the Salesforce Certified Platform App Builder credential?
How does the DEX403 course compare to self-study for the Salesforce certification exam?
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