How to Pass Salesforce Platform Developer I (2026): Study Plan

Salesforce Platform Developer I (PD1) certifies that you can build custom applications on the Salesforce Platform with declarative tools and code — Apex, SOQL, and Lightning Web Components. It's a broad exam where process automation and logic carries the most weight, and where knowing what's current (Flow, LWC) versus retiring (Workflow Rules, Process Builder) matters. Here's how to pass it.

The four sections and their weights

The current exam guide uses four weighted sections:

| Section | Weight | What it covers |
|---|:---:|---|
| Process Automation and Logic | 30% | Apex, SOQL/SOSL, Flow, triggers, order of execution |
| User Interface | 25% | Lightning Web Components, Aura, Visualforce |
| Developer Fundamentals | 23% | Data modeling, objects/relationships, platform basics |
| Testing, Debugging, and Deployment | 22% | Apex tests, debugging, deployment tools |

Process Automation and Logic (30%) is the single largest section — Apex and SOQL are the heart of the exam, plus knowing when to use declarative automation (Flow) versus code. The four sections are close in weight, so you need genuine coverage across all of them.

The study plan (5–7 weeks)

Budget 5–7 weeks with a Salesforce Developer org (free) open so you can write the code, not just read it.

Week 1 — Developer Fundamentals (23%). The data model (standard vs. custom objects, relationships — lookup vs. master-detail, junction objects), the platform's MVC architecture, and when to configure vs. code. This grounds everything else.

Weeks 2–3 — Process Automation and Logic (30%). Apex fundamentals (classes, triggers, collections, control flow), SOQL and SOSL, governor limits, the order of execution, and Flow. Learn Apex trigger patterns and when Flow is the better tool. Write real triggers and queries.

Week 4 — User Interface (25%). Lightning Web Components (the current model) — components, data binding, events, wire service — plus enough Aura and Visualforce to answer legacy questions, which are still tested.

Week 5 — Testing, Debugging, and Deployment (22%). Apex unit tests (test data setup, assertions, code-coverage rules), debugging tools and logs, and deployment (change sets, SFDX/metadata). Then timed, full-length practice.

Currency: Flow and LWC are the present

• LWC and Flow are current and central to the exam. Flow is Salesforce's primary automation tool.
• Workflow Rules and Process Builder are retiring (end of support at the end of 2025) — the exam is shifting toward Flow, so don't key your understanding on building new Workflow Rules or Process Builder.
• Aura and Visualforce are legacy but still tested — know them enough to answer, even though LWC is the modern component model.

Exam logistics

• 60 scored multiple-choice questions (plus up to 5 unscored) in 105 minutes.
• Passing score: 68%.
• Cost: $200 USD to register, $100 to retake.
• The credential doesn't expire in the usual sense — you keep it active with free Trailhead maintenance modules each release cycle.

The practice-test loop

PD1 rewards knowing exactly how Apex, SOQL, and LWC behave under the platform's rules. Timed questions with explanations build that. The loop:

1. Take a timed set on the section you're studying; for code/SOQL items, reason through the behavior yourself.
2. Review every question — including correct ones — and read why each distractor is wrong.
3. Repeat until you're consistently scoring well above 68% on fresh questions.

CertBase's Platform Developer I bank is built for that: Apex/SOQL/LWC questions written to the PD1 objectives — LWC and Flow as current, Workflow Rules/Process Builder as retiring, Aura/Visualforce as legacy-but-tested — each with a detailed explanation of the correct answer and every distractor. Rebuilt and independently verified in July 2026 — and this one is completely free, with lifetime access and no purchase required.

Are you ready?

• ✅ You can write Apex triggers and SOQL queries and reason about governor limits
• ✅ The order of execution and when-to-use-Flow-vs-Apex are clear to you
• ✅ You know LWC fundamentals and enough Aura/Visualforce to answer legacy items
• ✅ You understand Apex test requirements and code coverage
• ✅ You're scoring well above 68% on fresh, timed questions

FAQ

What does the PD1 exam cover? Four sections: Process Automation and Logic (30%, Apex/SOQL/Flow), User Interface (25%, LWC/Aura/Visualforce), Developer Fundamentals (23%, data modeling), and Testing/Debugging/Deployment (22%).

How many questions and what's the passing score? 60 scored questions (plus up to 5 unscored) in 105 minutes, passing at 68%.

Do I need to know Lightning Web Components? Yes — LWC is the current component model and part of the 25%-weighted User Interface section. You also need enough Aura and Visualforce to answer legacy questions.

Is the CertBase PD1 bank really free? Yes — the Platform Developer I bank is free with lifetime access, so you can drill it without any purchase. Question reps with strong explanations are the highest-leverage prep for a broad code-and-config exam like this.