How many questions are on the Salesforce Certified Platform Developer I exam?

The Salesforce Certified Platform Developer I exam has 60 questions, and the vendor's published description is: Content: 60 multiple-choice questions and up to five unscored questions; Time allotted to complete the exam: 105 minutes.

How long do you have to complete the Salesforce Certified Platform Developer I exam?

You get 105 minutes, which is about 105 seconds per question. The published format is: Content: 60 multiple-choice questions and up to five unscored questions; Time allotted to complete the exam: 105 minutes.

What score do you need to pass the Salesforce Certified Platform Developer I exam?

The passing score is 68% (Passing score: 68%).

What are the domains on the Salesforce Certified Platform Developer I exam?

There are 4 domains: User Interface, Developer Fundamentals, Process Automation and Logic, Testing, Debugging, and Deployment. The official weights are User Interface 25%, Developer Fundamentals 27%, Process Automation and Logic 28%, Testing, Debugging, and Deployment 20%.

How should I use the domain weights when revising?

Weight by percentage, not by domain. 25% is the one where lost points cost you the most, and Certilum scores you per domain so you can see exactly where that is.

Does Certilum have practice questions for the Salesforce Certified Platform Developer I exam?

Yes: 60 questions in our bank for this certification, each tagged to the exam domain it belongs to, with the official domain weights applied.

Exam format

Salesforce Certified Platform Developer I Exam Format

CRT-450

Everything the official exam blueprint specifies: question count, time limit, scoring and the weight each domain carries. Designed to validate a new developer's ability to implement safe, scalable, well-tested custom solutions in Salesforce. The exam covers the full development lifecycle: modeling data, writing Apex and Flow logic, building modern user interfaces, and preparing metadata for deployment. Successful candidates understand platform limits, security, and release principles. Earning this credential helps distinguish developers who can translate business requirements into maintainable Salesforce solutions and collaborate with administrators, architects, and other team members.

60 questions

105 min

68% to pass

4 domains

certilum

Exam facts at a glance

The published specifications for this certification.

Specification	Value
Questions	60
Time limit	105 minutes (105s per question)
Passing score	68% — Passing score: 68%
Domains	4
Level	Associate
Question bank here	60 questions
Published format	Content: 60 multiple-choice questions and up to five unscored questions; Time allotted to complete the exam: 105 minutes
Source	Official exam specification, published by the vendor

Official domain weights

The percentage of the exam each domain carries. Weight your revision by these numbers, not by what you find hardest.

Domain	Weight	Topics	Practice Qs
User Interface	25%	Build and customize pages with Lightning App Builder and Lightning record pages Develop Lightning Web Components using JavaScript, HTML, CSS, and Salesforce Lightning Design System Create Aura components and compare Aura with Lightning Web Components +3 more	15
Developer Fundamentals	27%	Describe the architecture and capabilities of the Salesforce platform and the role of Lightning Experience Design and create custom objects, fields, lookup relationships, master-detail relationships, and schema tools Use formulas, roll-up summaries, validation rules, and duplicate rules to maintain data integrity +3 more	16
Process Automation and Logic	28%	Create Apex classes, triggers, and interfaces that support maintainable business logic Design trigger frameworks that handle bulk records and multiple trigger events Describe declarative automation, including Flow, workflows, and Apex actions in Flow +3 more	17
Testing, Debugging, and Deployment	20%	Write unit tests for Apex classes, triggers, expected behaviors, and exception paths Maintain minimum code coverage and run test suites in the developer console Use debug logs, system debug statements, checkpoints, and code analysis tools +2 more	12

The heaviest domain is User Interface at 25%, and that is where lost points cost you the most. Certilum scores you per domain so you can see the difference between a knowledge gap and a formatting problem.

Note from the vendor record: Active but renamed: official Trailhead credential page and exam guide now use 'Salesforce Certified Platform Developer' (formerly 'Salesforce Certified Platform Developer I'), and Salesforce published no retirement date for it; it is not on the official February 1, 2027 retirement list. Prerequisite: None (course attendance highly recommended). Retakes cost USD 100 under the 3-attempts-per-release-cycle policy, and renewal requires the annual release-specific Trailhead maintenance module. Caveats: current official pages do not publish the 'CRT-450' exam code or an official effective date for the rename, so the code should be treated as legacy/unverified. Official exam page