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Salesforce Platform Developer I (PDI) : PDI

PDI

Exam Code: PDI

Exam Name: Platform Developer I (PDI)

Updated: Aug 04, 2026

Q & A: 205 Questions and Answers

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Platform Developer I (PDI) Exam

Platform Developer I (PDI) Exam is related to Salesforce Certified Platform Developer I Certification. This exam validates the Candidate knowledge and skills in building custom applications on the Lightning Platform. It also deals with the ability of the Lightning Platform to develop custom business logic and interfaces to extend Salesforce using Apex and Visualforce.

Who should take the PDI Exam

Salesforce Certified Platform Developer I certification is an internationally-recognized validation that identifies persons who earn it as possessing skilled as a Salesforce Certified Platform Developer I. If a candidate wants significant improvement in career growth needs enhanced knowledge, skills, and talents. The Salesforce PDI Exam provides proof of this advanced knowledge and skill. If a candidate has knowledge of associated technologies and skills that are required to pass the Salesforce PDI Exam then he should take this exam.

Reference: https://trailheadacademy.salesforce.com/certificate/exam-platform-dev1---Plat-Dev-201

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How much PDI Exam Cost

The price of the Salesforce PDI Exam is $200 USD.

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Salesforce PDI Exam Syllabus Topics:
SectionWeightObjectives
Data Modeling and Management12%- Describe the capabilities and use cases for external objects
- Describe the options for and considerations when importing and exporting data
- Given a set of business requirements, design and implement a schema for custom objects and relationships
Lightning Platform Architecture15%- Describe the architectural considerations when building Lightning components
- Describe the capabilities and use cases for the Lightning Framework and event-driven architecture
- Describe the Salesforce lifecycle and explain how updates and new features are delivered
- Describe the Lightning Platform architecture and explain the MVC design pattern
Testing, Debugging, and Deployment14%- Describe the frameworks and best practices for writing Apex code
- Describe the capabilities of Salesforce metadata and describe the use cases for change set deployment and package-based deployment
- Given a scenario, identify appropriate tools for debugging and monitoring errors
- Describe the testing requirements for Salesforce and describe the use cases for various testing tools
- Describe the use cases for Salesforce Edge and when to use sandbox vs. production environments
- Describe the capabilities and use cases for the Salesforce CLI and Developer Console
Integration10%- Describe when and how to use Salesforce Connect/External Objects
- Describe the capabilities and use cases for REST API and Batch API
- Describe the capabilities of the Salesforce OAuth framework
- Describe the capabilities and use cases for Apex web services and callouts
Salesforce Fundamentals10%- Describe the declarative configuration options available to customize the UI
- Identify the appropriate use case for a custom visualforce versus a standard Lightning component
- Describe the capabilities of the Salesforce UI/Lightning Experience
- Describe the capabilities of the relationship types
- Describe the capabilities of the core CRM objects in Salesforce
- Design the data model based on business requirements
- Given a scenario, identify the appropriate field type
User Interface13%- Given a scenario, describe how to expose Apex methods as Lightning Component events
- Describe how to use Salesforce standard events and custom events
- Describe the capabilities and use cases for lightning web components
- Describe the differences between and use cases for Visualforce and Lightning components
- Describe the programmatic capabilities of Visualforce and Lightning Component frameworks
Process Automation and Logic26%- Given a scenario, describe when and how to use formula fields, roll-up summary fields, and process automation features
- Given a scenario, describe when and how to use Apex transaction control
- Describe the capabilities and use cases for Apex managed sharing
- Describe the features of the sObject and Apex common library
- Describe the features of the Salesforce exception handling mechanism
- Describe the features of the Governor Limits and describe how to write efficient Apex code
- Describe the capabilities and use cases for VisualFlow
- Describe the capabilities of Apex and the programmatic capabilities of the Lightning Platform
- Describe the capabilities and use cases for the Lightning Flow
- Describe the syntax of Apex classes and triggers
- Describe the key attributes of an Apex class
PDI Related Exams
PDI-JPN - Platform Developer I (PDI日本語版)
Related Certifications
Salesforce Cloud Consultant
Salesforce Community Cloud
Platform App Builder
Salesforce Maps
Salesforce Certified Pardot Specialist
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