Platform Developer I PDI Real Exam Questions [Jan 2026 Update]

About the Exam: Salesforce Platform Developer I (PDI)

The Salesforce Certified Platform Developer I (PDI) exam validates your ability to design and build custom applications using Apex, Visualforce, and Lightning Web Components (LWC).

This certification is ideal for beginner to intermediate Salesforce developers looking to prove their skills in programmatic development and business logic implementation on the Salesforce Platform.

Exam Snapshot

What is the Salesforce Platform Developer I (PDI) Exam, and What Will You Learn From It?

The PDI exam tests your ability to develop, test, and deploy custom applications on Salesforce using Apex and Lightning Web Components.

You’ll learn how to:

• Write Apex classes, triggers, and test methods.
• Build Lightning Web Components (LWC).
• Manage data modeling and business logic.
• Integrate Salesforce with external systems.
• Deploy and debug custom code efficiently.

Prerequisites Before Taking the PDI Exam

While there are no official prerequisites, it’s recommended to:

• Have 6–12 months of programming experience.
• Understand object-oriented programming (OOP) concepts.
• Know Salesforce data model and security fundamentals.
• Complete Trailhead Developer Beginner modules.

Main Objectives and Domains You Will Study for PDI

The exam covers both the fundamentals and advanced aspects of Salesforce programming.

1. Salesforce Fundamentals (7%)

• Understand multi-tenant architecture and platform development tools.
• Identify when to use declarative vs. programmatic customization.

2. Data Modeling and Management (13%)

• Define custom objects, fields, and relationships.
• Manage schema design, data integrity, and limits

3. Logic and Process Automation (38%)

• Develop Apex classes, triggers, and controllers.
• Implement SOQL/SOSL queries.
• Handle DML operations and governor limits.
• Write bulk-safe and testable Apex code.

4. User Interface (25%)

• Build Lightning Web Components (LWC) and Aura Components.
• Manage UI events, data binding, and SLDS styling.

5. Testing, Debugging, and Deployment (17%)

• Write unit tests and achieve required code coverage.
• Debug using logs and Developer Console.
• Deploy using Change Sets or Salesforce CLI.

Boost your prep with real and updated PDI practice questions from Cert Empire.

Changes in the Latest Version of PDI

• Greater emphasis on Lightning Web Components over Visualforce.
• Updated content on Apex security and testing best practices.
• Inclusion of new developer tools (Salesforce CLI, VS Code).
• Reduced focus on older Salesforce UI frameworks.

Register and Schedule Your PDI Exam

1. Visit Webassessor by Salesforce.
2. Select “Platform Developer I.”
3. Choose Online Proctored or Test Center.
4. Schedule your preferred date, time, and language.

PDI Exam Cost and Discount

• Exam Fee: $200 USD
• Retake Fee: $100 USD
• Discounts: Available for Salesforce Partners and Students
• Save more with Cert Empire’s affordable PDI practice bundles at Cert Empire.

Exam Policies You Should Know Before Taking PDI

• Exams are closed-book and proctored.
• You must show valid government-issued ID.
• Retake after 1 day if unsuccessful.
• Maintain certification through Trailhead release modules.

What to Expect on Your PDI Exam Day

• Number of Questions: 60
• Duration: 110 minutes
• Passing Score: 68%
• Format: Multiple-choice/multiple-select
• Difficulty: Beginner to Intermediate
• Focus Areas: Apex, LWC, data model, and automation

Plan Your PDI Study Schedule Effectively With 5 Study Tips

1. Complete the Salesforce Platform Developer I Trailmix on Trailhead.
2. Practice Apex triggers, test classes, and SOQL queries.
3. Build LWC projects to strengthen hands-on experience.
4. Take mock exams to identify weak areas.
5. Use Cert Empire PDI practice exams for real exam-style questions.

Best Study Resources You Can Use to Prepare for PDI

• Cert Empire PDI Practice Questions
• Salesforce Trailhead Developer Beginner & Intermediate modules
• Official PDI Exam Guide
• Focus on Force Study Guide
• Salesforce Developer Forums and Stack Exchange

Career Opportunities You Can Explore After Earning PDI

• Salesforce Developer
• App Builder / Technical Consultant
• Lightning Developer
• Junior Solution Architect

Average Salary: $95,000 – $120,000 per year

Certifications to Go for After Completing PDI

• Platform Developer II (PDII)
• Platform App Builder
• Integration Architect
• Application Architect

How Does PDI Compare to Other Salesforce Developer Certifications?

Prepare confidently for your Salesforce Platform Developer I (PDI) exam with verified, updated, and realistic practice questions from Cert Empire.

Why Practice Exam Questions Are Essential for Passing Salesforce Platform Developer I Exam in 2026

Passing the Salesforce Platform Developer I certification isn’t about memorizing terms or rot learning, it’s about developing the aptitude required of a Salesforce application developer. Loaded with detailed explanations and extensive references, Cert Empire’s Salesforce Platform Developer I Exam Questions are designed to help you think like a real Salesforce developer. These practice questions mirror the Salesforce exam pattern, guiding you through what’s required to pass the exam on your first attempt.

Prepare Smarter with Exam Familiar Quiz

The Platform Developer I exam focuses on coding and configuration fundamentals, but with consistent practice, its complexity becomes manageable. By regularly solving real exam-style questions, you’ll improve your understanding of Apex, SOQL, data modeling, and Lightning components. Over time, the structure and logic of Salesforce’s development environment become second nature, allowing you to answer confidently and efficiently.

Master Every Domain with Real Exam Logic

The Platform Developer I practice questions cover all official domains in the correct proportion. These include Salesforce fundamentals, data modeling, business logic, user interface development, and testing. This balanced coverage ensures you build a strong foundation in both declarative and programmatic development. To explore more training options and credentials, see what’s available from Salesforce and expand your certification pathway.

What’s Included in Our Salesforce Platform Developer I Exam Prep Material

It’s not just a question blob that we offer, but a whole experience that transforms your exam preparation. Here is exactly what you get:

PDF Exam Questions

• Instant Access: Start preparing right after purchase with immediate delivery.
• Study Anywhere: Access the soft form questions from your phone, laptop, or tablet.
• Printable Format: Ideal for offline review and personal note-taking, and especially if you prefer to study from hard-form documents.

Interactive Practice Simulator

• Question Simulation: Our online Salesforce Platform Developer I exam practice simulator is designed to help you interactively review and prepare for the exam with tailored features such as show/hide answers, see correct answers etc.
• Flashcard-like Practice: Save your toughest questions and revisit them until you’ve mastered each domain.
• Progress Tracking: The progress tracking feature of our quiz simulator lets you resume your study journey right from where you left.

3 Months of Unlimited Access

Enjoy full, unrestricted access for three months, long enough to practice, revise, and retake simulations until you are satisfied with your results.

Regular Updates

Salesforce development standards and tools evolve rapidly. CertEmpire’s certified developers continuously update the Platform Developer I content to align with the latest Apex versions, Lightning framework changes, and new API features, ensuring complete exam relevance.

Free Practice Tests

To make the decision easy for you, we offer free practice tests for the Platform Developer I exam. Look at the right side-bar and you will find the free practice test button that will take you to a sample free Platform Developer I practice test. Go through the free Platform Developer I exam questions section and explore the depth and quality of our materials.

Free Exam Guides

Cert Empire offers free exam preparation guides for Salesforce Platform Developer I. You can access our blog section for detailed study plans, code samples, and explanations on Apex, SOQL, and Lightning. These resources are free and open to everyone.

Important Note

Our Salesforce Platform Developer I Exam Questions are updated regularly to match the latest Salesforce exam version.

The Cert Empire content team, led by certified Platform Developer I professionals, has taken the newest release and added updated coding structures, logic-building exercises, and real-world examples to ensure relevance.

✔ Each question includes detailed reasoning for both correct and incorrect options, helping you understand the full context behind every answer.
✔ Every solution links to official Salesforce developer documentation, allowing you to expand your knowledge through verified resources.
✔ Mobile-Compatible – Both the PDF and simulator versions are easy to use across smartphones, tablets, laptops, and even in printed form.

The Salesforce Platform Developer I certification remains one of the most popular credentials for Salesforce professionals, validating your ability to build, customize, and deploy robust applications on the Salesforce platform.