Salesforce Certified Platform Developer Certification Exam Guide
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⚡ Quick Answer
What is the Salesforce Certified Platform Developer Certification Exam Guide?
The Salesforce Certified Platform Developer Certification Exam Guide validates expertise in the relevant Salesforce domain. Exam format: 65% passing score. Offered by Salesforce, registered through Webassessor/Kryterion. Updated for Winter '26.
Winter '26 Edition
Last Updated: March 2026 | Exam Version: Winter '26
Salesforce Developer certifications validate your ability to build, extend, and integrate enterprise solutions using Apex, Lightning Web Components, JavaScript, MuleSoft, and emerging AI technologies. Whether you're starting with Platform Developer I or specializing in integration architecture, this guide covers all developer credentials and exam requirements. No formal prerequisites required, though hands-on development experience is strongly recommended.
⚡ What's New in Winter '26
🤖 Scenario-Based Automation Questions
Winter '26 emphasizes real-world comparisons between Flows and Apex implementation approaches.
🛡️ Secure Coding Standards
Enhanced focus on governor limits, security best practices, and optimization techniques across all developer exams.
✨ Modern Framework Updates
Exam content reflects current Lightning Web Components patterns and contemporary development methodologies.
📊 Exam At a Glance
| Certification Name | Salesforce Certified Platform Developer |
| Level | Developer |
| Prerequisites | None; Platform Developer I required for Platform Developer II |
| Number of Questions | 60 scored multiple-choice and multiple-select questions plus up to 5 unscored items |
| Duration | 105 minutes (Platform Developer I); 120 minutes (Platform Developer II) |
| Passing Score | 68% (Platform Developer I); 70% (Platform Developer II) |
| Exam Fee | $200 USD |
| Retake Fee | $100 USD |
| Delivery | Proctored online or at a testing center |
🎯 Exam Domains & Weightings
1. Developer Fundamentals
27%This domain covers foundational concepts for Salesforce platform development, including execution context, data model relationships, and development environment setup. Candidates must understand how the Salesforce metadata-driven architecture supports declarative and programmatic solutions.
🆕 Winter '26: Enhanced coverage of modern development practices and contemporary toolchain approaches.
2. Process Automation & Logic
28%Master declarative automation flows alongside programmatic logic using Apex. This domain emphasizes decision-making between different automation approaches and implementing complex business processes efficiently. Understanding asynchronous processing and batch operations is critical.
🆕 Winter '26: Added scenario questions contrasting Flow-based versus Apex-based automation solutions.
3. User Interface
25%Build responsive user experiences using Lightning Web Components and Aura framework. This section tests your ability to create interactive interfaces, manage component lifecycle, and implement effective data binding patterns. Modern UI design principles are increasingly emphasized.
🆕 Winter '26: Updated examples showcase contemporary Lightning Web Components patterns and best practices.
4. Testing, Debugging & Deployment
20%Ensure code quality through comprehensive unit testing, effective debugging strategies, and reliable deployment methodologies. Candidates must demonstrate proficiency with Apex testing frameworks, log analysis, and change management processes. Governor limit optimization techniques are integral.
🆕 Winter '26: Expanded focus on secure coding practices and performance optimization within governor limit constraints.
5. Advanced Object-Oriented Concepts & Patterns
20%Platform Developer II candidates must master sophisticated design patterns including inheritance, interfaces, and abstraction layers. This domain covers enterprise-grade architecture decisions and scalable solution design for complex organizational requirements.
6. Integration & Asynchronous Processing
23%Design and implement robust integration solutions using APIs, batch processing, and asynchronous execution models. This domain emphasizes reliable data synchronization, error handling, and performance optimization for large-scale system interactions.
❓ Sample Exam Questions
A company needs to recalculate commission amounts for 8,000 opportunity records every quarter. The process involves complex business logic and must handle potential failures gracefully. What is the most appropriate solution?
- A. Create a trigger on the Opportunity object that executes the calculation logic whenever records are updated
- B. Develop a Batch Apex job that processes opportunities in iterative chunks and use Database.executeBatch() for execution
- C. Build a Process Builder workflow to loop through all opportunities and update commission fields in one continuous operation
- D. Write an Apex class with a for loop that updates all records using DML statements directly in an @future method
Your Lightning Web Component displays a list of product categories that are rarely modified. However, you've noticed the component makes a fresh server call every time it loads, impacting performance. You're considering adding caching to your Apex controller method. Which statement correctly describes when you should implement caching in this scenario?
- A. Caching should never be used with Apex methods since it always returns outdated information to users
- B. Implement cacheable=true because the product categories change infrequently, allowing the framework to serve cached results and reduce server load, while reserving cacheable=false for volatile data requiring current values
- C. Use cacheable=false exclusively for all Apex methods to maintain database consistency across all Lightning Web Components
- D. The cacheable parameter only affects Apex class compilation and has no relationship to data retrieval performance
Your organization needs to implement complex business logic for a custom object that involves multiple validation checks, calculations, and record updates. The solution must be easy to test and maintain as requirements evolve. Which approach best supports these goals?
- A. Write all business logic directly in trigger blocks with inline conditional statements and DML operations
- B. Create a dedicated service class that handles the business logic and call it from a lightweight trigger, keeping the trigger focused on event handling only
- C. Build a custom metadata type configuration system that dynamically interprets business rules stored as records during trigger execution
- D. Develop a REST API endpoint that processes the validation and business logic when called manually by administrators
A Salesforce administrator needs to implement an automation solution. The requirement involves updating related records, sending emails based on conditions, and calling an external REST API to validate data. Which approach should be prioritized?
- A. Implement everything using Flows since it's the most modern declarative tool available
- B. Build a Flow for the record updates and email notifications, then use Apex to handle the external API callout and complex validation logic
- C. Code the entire solution in Apex since it provides superior capabilities compared to Flows
- D. Use only Flows because Apex is now considered a legacy technology in Salesforce
A developer is creating an Apex service class that integrates with an external REST API. During testing, they want to avoid making actual API callouts and instead verify that the service correctly handles different API responses. Which approach best solves this requirement?
- A. Disable the API endpoint in the Salesforce org configuration to prevent callouts during testing
- B. Design the service class to accept an interface parameter that allows test methods to pass in mock API response handlers
- C. Increase the governor limits in the test class using System.runAs() to accommodate actual API calls
- D. Remove all external integrations from the service class and implement them in a separate utility class
📚 Study Resources
🏃 Trailhead
Complete the official Certification Prep trail — free, covers all exam domains, and is updated each release.
Go to Trailhead →📄 Official Exam Guide
Download the official exam guide from Trailhead for the exact domain weightings and topic list for Winter '26.
Official Guide →💬 Trailblazer Community
Join the study group on the Trailblazer Community to share tips, ask questions, and connect with other candidates.
Join Community →💡 Top Exam Tips
- Study official Salesforce documentation alongside practice exams to understand the 'why' behind correct answers, not just memorize solutions.
- Gain hands-on experience building Apex classes, Lightning Web Components, and integration patterns in a developer org before attempting the certification exam.
- Practice writing unit tests covering positive, negative, and edge cases to master testing concepts thoroughly.
- Review governor limits and optimization techniques frequently, as performance considerations appear throughout all developer-level exams.
- Join Salesforce developer communities and study groups to discuss real-world scenarios and learn from peers' experiences.
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