Study for Platform Developer I, one exam section at a time.

21 short lessons on Apex, SOQL, triggers, LWC and testing, 370 practice questions with explanations (210 in lessons, 40 in section checks, 120 in 4 practice quizzes), flashcards, built around the official exam outline by a senior Salesforce developer.

$9.99for 12 months of access ✓ 30-day refund
Get the Developer Cert Lab, $9.99Read a full lesson free →

Checked against official docs Oct 10, 2026 · Enrolled right after checkout

Platform Developer Cert Lab: 4 exam sections and their weights
20,000+students on Nick's Udemy course
4.8★from 3,300+ Udemy ratings
Every factlinked to official docs
30 daysto ask for a refund

Udemy figures from his Salesforce Flows course, checked Oct 10, 2026.

What you'll learn

  • Know the governor limits cold, sync vs async, and write bulkified Apex that stays under them.
  • Choose declarative or code the way the exam expects: formulas, roll-ups, Flow and Apex.
  • Write and read SOQL, SOSL and DML, and know exactly what each returns.
  • Explain triggers, the save order and recursion, classic exam traps.
  • Handle exceptions and custom exceptions correctly.
  • Build Lightning web components and secure your Apex against SOQL injection and XSS.
  • Test, debug and deploy: test classes, coverage, debug logs and environments.
  • Walk into the exam having already worked through 370 exam-style questions.

This course includes

  • 21 lessons across all 4 exam sections
  • 370 practice questions with explanations
  • 10 practice questions in every lesson
  • A section check, flashcards and a 30-question practice quiz per section
  • Apex, SOQL and LWC samples in VS Code Dark+ style code blocks
  • Hands-on tasks for a free Developer Edition org
  • Every fact linked to official docs
  • Bonus: the free Platform Administrator Cert Lab
  • Bonus: 4-week study plan and governor limits cheat sheet
$9.9912 months
✓ 30-day refund

Why developers fail PD1

The exam costs $200, and it doesn't test whether you can write Apex. It tests whether you can spot the code that breaks: the query inside a loop, the trigger that fires itself again, the DML inside a loop that runs into a governor limit.

Developers who code every day still miss these, because the exam hides them in short snippets with four plausible answers. Cert Lab drills exactly those snippets, and every answer explains why the other three are wrong.

1. Read the code like the exam does

Governor limits, bulkification, SOQL in loops, triggers, the save order and recursion, one objective per lesson.

2. Drill the traps

A section check, flashcards and a 30-question practice quiz for each of the 4 sections.

3. Secure what you ship

Sharing, user mode, stripInaccessible, SOQL injection and XSS in Apex and Lightning web components.

Curriculum

4 sections · 21 lessons · 370 practice questions. DF1 is free to read.

Developer Fundamentals · 27% · 6 lessons
  • DF1: Multitenancy and governor limitsPreview
  • DF2: MVC and the Lightning Component Framework🔒 Locked
  • DF3: Declarative or code: formulas, roll-ups and Apex🔒 Locked
  • DF4: Relationships: lookup, master-detail and many-to-many🔒 Locked
  • DF5: Accessing related data: relationship queries and external IDs🔒 Locked
  • DF6: Agentforce for Developers: uses and limits🔒 Locked
  • Section check, flashcards and a 30-question practice quiz🔒 Locked
Process Automation and Logic · 28% · 6 lessons
  • PA1: Declarative automation and Apex together🔒 Locked
  • PA2: Variables, constants, methods, modifiers and interfaces🔒 Locked
  • PA3: Control flow: if-else, switch and loops🔒 Locked
  • PA4: SOQL, SOSL and DML in Apex: what they return🔒 Locked
  • PA5: Triggers, the save order and recursion🔒 Locked
  • PA6: Exception handling and custom exceptions🔒 Locked
  • Section check, flashcards and a 30-question practice quiz🔒 Locked
User Interface · 25% · 5 lessons
  • UI1: Secure data access in Apex: sharing, user mode and stripInaccessible🔒 Locked
  • UI2: Preventing SOQL injection and XSS🔒 Locked
  • UI3: Building Lightning web components: files, decorators and targets🔒 Locked
  • UI4: LWC events and component communication🔒 Locked
  • UI5: Apex for components, flows and agents🔒 Locked
  • Section check, flashcards and a 30-question practice quiz🔒 Locked
Testing, Debugging, and Deployment · 20% · 4 lessons
  • TD1: Writing Apex tests: @IsTest, assertions and code coverage🔒 Locked
  • TD2: Test data: setup methods, loadData and SeeAllData🔒 Locked
  • TD3: Developer tools, debug logs and monitoring🔒 Locked
  • TD4: Environments and deployment🔒 Locked
  • Section check, flashcards and a 30-question practice quiz🔒 Locked
Read DF1 freeUnlock every section

Your instructor

Nick Frates

Nick Frates, senior Salesforce developer

Nick writes Apex, triggers and Lightning web components for a living, so the lessons start where developers get stuck: limits, order of execution and security, not syntax drills.

Every limit and code sample in the course is checked against Salesforce's developer docs, Help or Trailhead, and each lesson lists its sources. If a fact can't be sourced, it isn't in the course.

Who it's for

Admins moving into code, junior developers heading for their first developer cert, and anyone who has done Trailhead but wants exam-style practice.

Who it's not for

Anyone looking for real exam questions (there are none here) or complete beginners who have never written code. Start with the free Admin course instead.

Everything you get

21 lessons across Developer Fundamentals, Process Automation and Logic, User Interface, and Testing, Debugging, and Deployment✓
370 practice questions with explanations: 210 in lessons, 40 in section checks, 120 in 4 practice quizzes✓
Code samples in VS Code Dark+ style, with file tabs and line numbers✓
A section check and flashcards for every section✓
Apex trap coverage: governor limits, bulkification, SOQL in loops, triggers, save order, recursion✓
Secure Apex and LWC: sharing, user mode, SOQL injection and XSS✓
Bonus 1: Platform Administrator Cert Lab (all 8 sections)Free
Bonus 2: Governor limits cheat sheet✓
Bonus 3: 4-week study plan✓
30-day refund✓
Your price
The exam itself is $200		$9.99
12 months
✓ 30-day refund

Questions

Is it current?

Yes. It follows the current official PD1 exam outline, and the lessons were checked against Salesforce's developer docs, Help and Trailhead on Oct 10, 2026.

How long do I have access?

12 months from the day you buy.

What if it's not for me?

Email refunds@nickfrates.com within 30 days for a full refund. See the refund policy.

Are these real exam questions?

No. Every snippet and question is written from the public exam objectives and Salesforce's docs. Using real exam questions breaks Salesforce's certification rules.

I already write Apex. Will this help?

That's who it's for. The exam rewards reading code for limits, order of execution and security, and the practice quizzes drill exactly that.

Do I need a paid Salesforce org?

No. A free Developer Edition org is enough to run the code and tasks.

Does it guarantee a pass?

No. It gives you 370 explained practice questions and links every fact to its official source.

Find the bug before the exam does.

$200 for the exam. $9.99 to drill the Apex traps first.

$9.9912 months of access ✓ 30-day refund
Start the Developer Cert Lab

Not sure yet? Read DF1, governor limits, free.

Independent study material. Created by Nick Frates. Not affiliated with, sponsored by or endorsed by Salesforce, Inc. All questions are original and are not actual exam questions. Salesforce, Agentforce, Trailhead and other marks are trademarks of Salesforce, Inc., used only to identify the exam this material helps you study for.

$9.99 · 12 months
Platform Developer Cert Lab · 30-day refund
Get access

Platform Developer Cert Lab

Categories: Salesforce Developer
Wishlist Share

About Course

Study course for the Salesforce Certified Platform Developer exam: lessons for all 4 exam sections (Developer Fundamentals, Process Automation and Logic, User Interface, and Testing, Debugging, and Deployment), each with a section check, flashcards and a practice quiz.

Independent study material. This course is an independent product created by Nick Frates. It is not affiliated with, sponsored by or endorsed by Salesforce, Inc. All questions are original, written from the public exam guide objectives and official documentation, and are not actual exam questions. Using it doesn’t guarantee a passing score.

Salesforce, Agentforce, Trailhead and other marks are trademarks of Salesforce, Inc. and are used here only to identify the exam and products this material helps you study.

Show More

Course Content

Developer Fundamentals (27%)

  • DF1: Multitenancy and governor limits
  • DF2: MVC and the Lightning Component Framework
  • DF3: Declarative or code: formulas, roll-ups and Apex
  • DF4: Relationships: lookup, master-detail and many-to-many
  • DF5: Accessing related data: relationship queries and external IDs
  • DF6: Agentforce for Developers: uses and limits
  • Developer Fundamentals: Section check
  • Developer Fundamentals: Flashcards
  • Developer Fundamentals: Practice Quiz

Process Automation and Logic (28%)

User Interface (25%)

Testing, Debugging, and Deployment (20%)

Bonuses
Extras included with your enrollment.

Student Ratings & Reviews

No Review Yet
No Review Yet