Can I use notes in the Platform App Builder exam?

No. It is proctored and delivered through Pearson VUE, at a test centre or online. Use this for final revision before exam day only.

Platform App Builder Cheat Sheet: Objects, Flow & Deploy

A final-revision summary for the Platform App Builder exam. Study aid only - no notes in the proctored exam.

The five domains (current weights, after the December 2025 restructure)

#	Domain	Weight
1	Salesforce Fundamentals	23%
2	Data Modeling and Management	22%
3	Business Logic and Process Automation	28%
4	User Interface	17%
5	App Deployment	10%

Older nine-section material is out of date. Study the current five-domain exam guide.

The app-building workflow (left to right)

Model the data (objects, fields, relationships) → Add logic (formulas, validation, Flow) → Build the UI (Lightning App Builder) → Deploy (sandbox → change set / package → production).

Data modeling - relationships at a glance

Relationship	Idea
Lookup	Loose link; child can exist without the parent
Master-detail	Tight parent-child; ownership, cascade delete, roll-up summaries
Junction object	Two master-detail relationships = many-to-many
Formula field	Calculated per record at read time (read-only)
Roll-up summary	Aggregates children up to a master-detail parent (COUNT/SUM/MIN/MAX)

Business logic and automation - Flow types

Tool / type	Idea
Validation rule	Blocks a save when data fails a condition
Screen flow	Guides a user through screens
Record-triggered flow	Runs on record create / update / delete
Scheduled flow	Runs on a set schedule
Autolaunched flow	No UI; called by another process

User interface

Term	Idea
Lightning App Builder	Drag-and-drop builder for app, home and record pages
Record page	Layout of one record plus components
Page layout	Field, section and related-list arrangement on a record
List view	Saved, filtered list of records

App deployment

Term	Idea
Sandbox	Copy of an org to build and test safely
Change set	Moves metadata between related orgs
Managed package	Versioned, upgradeable; distributed via AppExchange
Unmanaged package	One-time bundle the recipient then owns

Exam facts at a glance

Item	Value
Exam code	Plat-Admn-202
Duration	105 minutes
Questions	60 scored + 5 unscored (65 total)
Passing score	63%
Format	Multiple-choice / multiple-select; proctored; Pearson VUE
Fee	US$200 register / US$100 retake (plus tax; confirm with Salesforce)
Validity	No fixed expiry; free Trailhead maintenance each release

Declarative vs code - the recurring judgement

Platform App Builder is the clicks-not-code credential. Solve with declarative tools - objects, fields, relationships, formulas, validation rules, Flow and the Lightning App Builder - until a requirement genuinely needs Apex or Lightning Web Components, which are Platform Developer I territory.

Salesforce Platform App Builder Cheat Sheet