Skip to main content

Get Started with Platform Developer I Study Guide

Learning Objectives

After completing this unit, you'll be able to:

  • Describe the key topic areas of the Platform Developer I Certification.
  • Access resources that help you prepare for the Platform Developer I Certification.
  • Describe the policies that protect the security and confidentiality of the Salesforce credentials.

The Platform Developer I Certification

The Salesforce Platform Developer I credential is designed for individuals who have experience developing and deploying basic business logic and user interfaces using the programmatic capabilities of the Lightning Platform.

This exam covers these key topics, each making up a certain percentage of the exam.

  • Developer Fundamentals: 23%
  • Process Automation and Logic: 30%
  • User Interface: 25%
  • Testing, Debugging, and Deployment: 22%

Preparing for the Exam

Preparing for the Platform Developer I Certification exam takes time! This module takes you through preparing for part of the exam. There are three additional modules to help you continue your journey toward certification.

All four modules contain real-world scenarios, interactive flashcards, links to resources, and key topic areas to study.

Don't forget to join the Trailblazer Community, where you can ask questions, collaborate, and join groups to help you prepare for your exam.

Exam Logistics and Policies

Curious about the logistics of the exam? Here are some quick facts for you.

Recommended Experience

1 to 2 years of experience as a developer and at least 6 months of experience on the Lightning Platform

Number of Questions

60 multiple choice/multiple select questions

Passing Score



Received immediately


First attempt: $200 plus tax.

Additional attempts are half price.


Online or at a facility in your area


No hard-copy or online materials can be referenced during the exam.

The quality of our certification exams and the value our credentials provide is our highest priority. Protecting the security and confidentiality of our exams is essential to providing our customers with credentials that are respected and industry leading.

As a participant of the Salesforce Certification Program, you're required to accept the terms of the Salesforce Credential and Certification Program Agreement. Below are important reminders about Salesforce certification exam-taking policies. You may also review these policies in detail in the Salesforce Credential and Certification Program Agreement and Code of Conduct Trailhead Help article.

Salesforce Certification Program participants should:

  • Use Salesforce-approved study materials available on Trailhead to prepare for your certification exam, including certification exam guides, trailmixes/trails, Trailhead Academy courses, and Trailhead LIVE sessions.
  • Collaborate with other Trailblazers in the Trailblazer Community by joining a community group and finding a study buddy and/or mentor.
  • Review and abide by the guidelines for online proctored and in-person certification exams.
  • Submit a case with the Credential Security Team if you see any activity that undermines credential security.

Salesforce Certification Program participants are prohibited from:

Consequences for violating the program agreement include but are not limited to:

  • Cancellation of upcoming and in progress certification exams
  • Suspension from earning or revocation of Salesforce Credentials
  • Removal from the Salesforce Credentialing Program and/or the Trailblazer Community

Maintain Your Certification

To maintain your Salesforce Credentials, all certified professionals must successfully complete release maintenance modules specific to their credentials once per year. You may view specific maintenance requirements here. If you don't complete your maintenance modules by the completion deadline, your credentials will expire.

If you'd like more information about certification maintenance, visit the Maintaining Your Salesforce Credential page.

Prepping for the Exam

This module is focused on this key topic.

  • Developer Fundamentals: 23%

In the following unit, you learn the key areas to study for this section of the exam and work through some common scenarios.

Next, let's study up on Developer Fundamentals.


Keep learning for
Sign up for an account to continue.
What’s in it for you?
  • Get personalized recommendations for your career goals
  • Practice your skills with hands-on challenges and quizzes
  • Track and share your progress with employers
  • Connect to mentorship and career opportunities