Platform App Builder study guide · 2026

The 5 Platform App Builder domains, explained

5 domains and 26 official objectives. Business Logic and Process Automation carries the most weight at 32%. Each guide explains what the domain covers, how its questions are framed and where candidates lose marks.

Start with Domain 3 See all domains
Questions
60 scored multiple-choice/multiple-select (plus up to 5 unscored)
Time
105 minutes
Passing score
73%
Outline
Salesforce Certified Platform App Builder Exam Guide (Salesforce Help article 005298964), Summer '26 release; content update live 21 August 2026 (current as of October 2026)

Exam blueprint

Bar widths follow the official weights. Weight ranges are drawn at their midpoint.

  1. 1 18%
  2. 2 20%
  3. 3 32%
  4. 4 17%
  5. 5 13%
  1. 1 Salesforce Fundamentals
  2. 2 Data Modeling and Management
  3. 3 Business Logic and Process Automation
  4. 4 User Interface
  5. 5 App Deployment

All 5 domains

26 official objectives 54–67 hrs suggested study

  1. Domain 01 18%

    Salesforce Fundamentals

    Salesforce Fundamentals checks whether you can tell clicks from code, extend an org through AgentExchange, layer object, field and record access correctly, and build reports, report types and dashboards that answer the business question.

    Inside this domain

    • Given a scenario, identify the boundaries of declarative customization and the use cases for programmatic customization.
    • Identify common scenarios for extending an org using the AgentExchange.
    • Apply features and capabilities available to restrict and extend object, record, and field access.
    • Given a set of business requirements, determine the appropriate sharing solution.
    • and 1 more objectives

    Watch for Layout hides the field

    Objectives
    5
    Questions est.
    ~11
    Study time est.
    10–12 hrs
  2. Domain 02 20%

    Data Modeling and Management

    Data Modeling and Management tests how you design objects and relationships, what happens when a field type changes, and which import, export or external data option suits a given volume and source.

    Inside this domain

    • Given a scenario, determine the appropriate data model.
    • Given a scenario, explain the capabilities of the various relationship types and the implications of each on record access, user interface, and reporting.
    • Given a scenario, determine the considerations when selecting or changing a field data type.
    • Given a scenario, determine the options and considerations when importing and exporting data, including the capabilities of external data sources.

    Watch for Lookup with roll-ups

    Objectives
    4
    Questions est.
    ~12
    Study time est.
    10–13 hrs
  3. Domain 03 32%

    Business Logic and Process Automation

    The heaviest section at 32%: formula fields, roll-up summaries and validation rules, then building, choosing, approving with and troubleshooting flows, plus where Agentforce takes over parts of a business process.

    Inside this domain

    • Given a scenario, demonstrate the use of formula fields to meet stated business requirements.
    • Given a scenario, determine the capabilities, use cases, and implications of roll-up summary fields.
    • Given a scenario, demonstrate the use of validation rules to meet stated business requirements.
    • Create and configure flows using Flow Builder.
    • and 4 more objectives

    Watch for Flow to block saves

    Objectives
    8
    Questions est.
    ~19
    Study time est.
    18–22 hrs
  4. Domain 04 17%

    User Interface

    User Interface covers how to shape what users see: Lightning record pages, Dynamic Forms and component visibility, custom buttons, links and actions, when a custom Lightning web component is needed, and actions and layouts for mobile.

    Inside this domain

    • Describe the user interface customization options.
    • Demonstrate the capabilities and use cases for custom buttons, links, and actions.
    • Given a scenario, determine the declarative options available for incorporating Lightning components in an application.
    • Describe the programmatic customizations available for incorporating custom Lightning components in an application.
    • and 1 more objectives

    Watch for Layout for conditional fields

    Objectives
    5
    Questions est.
    ~10
    Study time est.
    9–11 hrs
  5. Domain 05 13%

    App Deployment

    App Deployment asks how an app moves from idea to production: which sandbox to build and test in, when change sets work, which package type fits, and how to plan a release that users can adopt safely.

    Inside this domain

    • Given a set of business requirements, recommend a solution for managing the application lifecycle, including sandbox types.
    • Given a use case, demonstrate knowledge, viability, and troubleshooting when using change sets.
    • Describe the use cases and considerations when using unmanaged and managed packages.
    • Given a scenario, determine the appropriate deployment plan.

    Watch for Full sandbox for everything

    Objectives
    4
    Questions est.
    ~8
    Study time est.
    7–9 hrs

Study the heaviest domains first

Marks follow weight. This order puts the most marks behind you first, across about 54–67 hrs of study.

  1. 3 Business Logic and Process Automation 32% · 18–22 hrs
  2. 2 Data Modeling and Management 20% · 10–13 hrs
  3. 1 Salesforce Fundamentals 18% · 10–12 hrs
  4. 4 User Interface 17% · 9–11 hrs
  5. 5 App Deployment 13% · 7–9 hrs

Try one

Practice questionDomain 3: Business Logic and Process Automation

When a Case is created with Priority set to High, its Escalation_Due__c date/time field must be set to four hours after creation. Nothing else changes. Which solution should an app builder use?

One trap from every domain

The answer that looks right, and the clue that gives it away.

  • Domain 1

    Layout hides the field

    Clue The scenario says users must not be able to see the value anywhere.

  • Domain 2

    Lookup with roll-ups

    Clue The requirement asks for a sum or count shown on the parent.

  • Domain 3

    Flow to block saves

    Clue Words like prevent, must not, or require before saving.

  • Domain 4

    Layout for conditional fields

    Clue Fields must appear only when another field has a certain value.

  • Domain 5

    Full sandbox for everything

    Clue One person building and testing a small change.

Other CRM & Business Applications certifications

Study guides for exams that overlap with Platform App Builder.

Practise what you read

Platform App Builder domains: common questions

How many domains are in the Platform App Builder exam?

Platform App Builder has 5 domains with 26 official objectives between them: Salesforce Fundamentals, Data Modeling and Management, Business Logic and Process Automation, User Interface and App Deployment.

Which Platform App Builder domain carries the most weight?

Business Logic and Process Automation is the heaviest at 32%, followed by Data Modeling and Management (20%). The lightest is App Deployment (13%). Weights come from Salesforce's official outline.

What is the Platform App Builder exam format?

Questions: 60 scored multiple-choice/multiple-select (plus up to 5 unscored). Time allowed: 105 minutes. Passing score: 73%.

How long should I study for Platform App Builder?

Our planning estimate is 54–67 hrs across all domains, split by weight. It is an editorial estimate, not an official figure, so adjust it to your experience and to how you score on practice questions.

Where should I start?

Start with Business Logic and Process Automation, because it carries the most marks, then work down by weight. Use the checklist on each domain page to confirm you can do what the domain asks before moving on.

Which outline is this guide based on?

This guide follows Salesforce Certified Platform App Builder Exam Guide (Salesforce Help article 005298964), Summer '26 release; content update live 21 August 2026 (current as of October 2026), published by Salesforce. It was last reviewed in October 2026.

Domain names, weights and objectives come from Salesforce's official outline (Salesforce Certified Platform App Builder Exam Guide (Salesforce Help article 005298964), Summer '26 release; content update live 21 August 2026 (current as of October 2026)). Question counts and study hours are editorial planning estimates, not official figures. Last reviewed October 2026.