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Salesforce DEX-403 Exam Overview:
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Declarative Development for Platform App Builders in Lightning Experience |
| Exam Number: | DEX-403 |
| Available Languages: | English |
| Related Certifications: | Salesforce Administrator (ADM-201) Platform App Builder (CRT-403) |
| Real Exam Qty: | 60 |
| Exam Format: | Multiple Choice, Multiple Select |
| Certificate Validity Period: | 2 years |
| Passing Score: | 68% |
| Exam Duration: | 105 minutes |
| Exam Price: | $200 USD |
| Sample Questions: |  |
| Exam Way: | Online proctored exam (Webassessor) or in-person testing center |
| Pre Condition: | Recommended: Completion of the declarative development modules on Trailhead, particularly 'Platform App Builder' superbadge prerequisites. Basic understanding of Salesforce CRM concepts is beneficial but not mandatory. |
| Official Syllabus URL: | https://trailhead.salesforce.com/credentials/datamodeling |
Salesforce DEX-403 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Management | 8% | - Data Loader - Duplicate Rules and Matching Rules - Data Import Wizard - Data Export |
| Topic 2: Deployment Tools | 12% | - Metadata API Basics - Change Sets - Sandbox Types and Uses - Salesforce DX (Optional) |
| Topic 3: Screen Flows | 10% | - Screen Elements - Logic Elements - Flow Builder Basics - Flow Debugging and Testing - Flow Variables and Resources |
| Topic 4: Object Design and Logic | 12% | - Roll-up Summary Fields - Formula Fields - Business Logic Implementation - Validation Rules - Record Types |
| Topic 5: Data Modeling | 12% | - Custom and Standard Objects - Custom and Standard Fields - Schema Builder - Relationship Fields (Lookup, Master-Detail) - Data Types and Field Types |
| Topic 6: Sharing and Visibility | 10% | - Account Team and Opportunity Team - Sharing Rules - Organization-Wide Defaults - Role Hierarchy - Manual Sharing |
| Topic 7: Salesforce Mobile App | 8% | - Mobile Optimized Layouts - Salesforce Mobile App Configuration - Mobile Actions - Mobile Navigation |
| Topic 8: User Interface | 10% | - Lightning App Builder - Lightning Page Types - Compact Layouts - Lightning Record Pages - Page Layouts |
| Topic 9: Approval Processes | 8% | - Approval Workflow - Approval Process Components - Approval Actions - Process Builder Integration |
| Topic 10: Reports and Dashboards | 10% | - Report Summaries and Charts - Dashboard Components - Report Builder - Report Types - Custom Report Types |
DEX-403 Exam FAQ: What Candidates Ask About Salesforce Declarative Development for Platform App Builders in Lightning Experience
The DEX-403 exam, officially known as Salesforce Declarative Development for Platform App Builders in Lightning Experience, is the Salesforce test that leads to the Salesforce Platform APP Builder certification at the Associate / Beginner level. Passing it validates the skills employers expect from a certified professional. It is also associated with related credentials such as Salesforce Administrator (ADM-201), Platform App Builder (CRT-403).
The DEX-403 exam contains 60 questions, and you have 105 minutes to complete them. Work out your per-question pace before test day, and flag slow items instead of stalling on them — time pressure, not knowledge, sinks many first attempts. Timed mock exams in the Actual4Exams test engines are the most reliable way to build that rhythm.
The passing score for the DEX-403 exam is 68%, and the official registration fee is $200 USD. If you miss the mark, a retake means paying the full fee again, so book your seat only when you are ready. A practical benchmark: score consistently above the passing line on timed practice tests before scheduling the real exam.
Recommended: Completion of the declarative development modules on Trailhead, particularly 'Platform App Builder' superbadge prerequisites. Basic understanding of Salesforce CRM concepts is beneficial but not mandatory.
Entry requirements can change, so confirm the latest conditions on the official exam page: https://trailhead.salesforce.com/credentials/datamodeling.
Yes. A free PDF demo of the Salesforce Declarative Development for Platform App Builders in Lightning Experience questions is available, so you can check the question style and answer quality before you pay. Every purchase also includes 365 days of free updates, and if the product expires you can renew the update service at a 50% discount from your member zone.
If you take the corresponding DEX-403 exam within 60 days of purchase and do not pass, you can apply for a full refund under the 100% Money Back Guarantee: submit a scan of your enrollment slip and your official Score Report (PDF) within 2 days of the exam date, and the claim is processed within 7 days. Attempts made within 3 days of purchase, downloads without an actual exam attempt, free materials, and expired orders are not eligible, and the candidate name must match the payer name. Prefer new material instead of a refund? You can exchange your purchase for two free products of equal value and keep the update service on your original product. As for delivery, the files are available for instant download and are also emailed to you within one minute of payment — if nothing arrives within 2 hours, contact customer service. There is no limit on how many computers you can install the product on.
The official Salesforce Declarative Development for Platform App Builders in Lightning Experience outline is organized into 10 domains. The first three are:
- Object Design and Logic — 12% of the exam
- Salesforce Mobile App — 8% of the exam
- Data Modeling — 12% of the exam
See the complete exam topics section above for the full outline and the weighting of every domain.
Salesforce Declarative Development for Platform App Builders in Lightning Experience Sample Questions:
Question 1
Northern Trail Outfitters wants to change a master-detail relationship on
Account to a lookup relationship with a custom object Park. The app builder tries to
reconfigure this but is unable to do so.
What could be causing this?
A. The Park object needs at least one Master-Detail field for reporting.
B. The Account record includes Parks roll-up summary fields.
C. The Account is included in a flow process on the Park object.
D. The park records have existing formulas on the Account.
Question 2
Cloud Kicks has leads owned by users and queues. The sales manager wants the status to change to working when a user takes ownership.
What does an app builder need to have in the criteria to ensure the process runs without error?
A. NOT(ISBLANK([Lead].OwnerId))
B. [Lead].Owner:Queue.OwnerId Is Null = True
C. [Lead].Owner:User.Role Is Null = False
D. BEGINS([Lead].OwnerId, ,,005")
Question 3
Cloud Kicks wants to know the total value of all won Opportunities for Accounts and display it on the record.
What type of summary should the app builder use in the roll-up summary field?
A. Min
B. Sum
C. Count
D. Q Max
Question 4
DreamHouse Realty wants to display a weather map component on a Lightning record page when a house is scheduled for a showing.
How should the app builder meet the requirement?
A. Field-level security
B. Component visibility
C. Field-level field
D. Sharing rules
Question 5
An app builder needs to change the data type of some custom fields.
Which two limitations should the app builder be aware of when changing the data type of a custom field?
Choose 2 answers
A. It is not possible to change the data type of a formula field to any data type.
B. It is not possible to change the data type of field referenced by Apex code,
C. It is not possible to change the data type of a field used as an External ID from number to text.
D. It is not possible to change the data type of a Text Area (Long) field to Text.
Solutions:
| Question 1 Answer: B | Question 2 Answer: A | Question 3 Answer: B | Question 4 Answer: B | Question 5 Answer: A,D |
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