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Updated: Aug 28, 2026
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Salesforce Plat-Dev-301 Exam Overview:
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified Platform Developer II |
| Exam Number: | Plat-Dev-301 |
| Exam Duration: | 105 minutes |
| Available Languages: | English, French, Spanish, German, Japanese |
| Exam Format: | Multiple Select, Multiple Choice |
| Real Exam Qty: | 60 |
| Exam Price: | $200 USD |
| Related Certifications: | Salesforce Certified Platform Developer I |
| Certificate Validity Period: | 3 years |
| Passing Score: | 65% |
| Recommended Training: | Salesforce Trailhead - Platform Developer II Prep Salesforce Developer Documentation |
| Exam Registration: | Kryterion Webassessor Salesforce Certification Registration |
| Sample Questions: | Salesforce Plat-Dev-301 Sample Questions |
| Exam Way: | Online proctored or onsite test center via Kryterion Webassessor |
| Pre Condition: | Recommended prerequisite: Salesforce Certified Platform Developer I and practical experience building Salesforce applications with Apex and Lightning Platform. |
| Official Syllabus URL: | https://trailhead.salesforce.com/credentials/platformdeveloperii |
Salesforce Plat-Dev-301 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Application Development | - Asynchronous processing
|
| Topic 2: Integration and APIs | - External system integration
|
| Topic 3: Testing and Deployment | - Deployment lifecycle
|
| Topic 4: Data Modeling and Management | - Advanced data modeling
|
Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:
Question 1
A developer is creating a Lightning web component that displays a list of records in a lightning-datatable. After saving a new record to the database, the list is not updating.
What should the developer change in the code above for this to happen?
A. Create a new variable to store the result and annotate it with @track.
B. Create a variable to store the result and call refreshpex().
C. Add the @track decorator to the data variable.
D. Call rafrasnApex() ON this.dazta.
Question 2
Consider the following code snippet:
Which two steps should the developer take to add flexibility to change the endpoint and credentials without needing to modify code? Choose 2 answers
A. Use red. setEndpoint (Label.endPointURL) ;.
B. Create a Named Credential, endPcint_wc, ta store the endpoint and credentials.
C. Use req. setindpoint ('callout:endFoint_NC'); within the callout request.
D. Store the URL of the endpoint in a custom Label named endpointuRL.
Question 3
After a platform event is defined in a Salesforce org,events can be published via which mechanism?
A. External Apps use an API Co publish event messages.
B. Internal Apps can use outbound messages.
C. Internal Apps can use entitlement processes.
D. External Apps require the standard Streaming API.
Question 4
A developer is inserting, updating, and deleting multiple lists of records in a single transaction and wants to ensure that any error prevents all execution.
How should the developer implement error exception handling in their code to handle this?
A. Use Database.setSavepoint {} and Database.rollBack with a try-catch statement.
B. Use a try-catch and use sObject.addError() on any failures.
C. Use Database methods to obtain lists of Database.SaveResults.
D. Use a try-catch statement and handle DML cleanup in the catch statement,
Question 5
A Salesforce org has more than 50,000 contacts. A new business process requires a calculation that aggregates data from all of these contact records. This calculation needs to run once a day after business hours.
which two steps should a developer take to accomplish this?
Choose 2 answers
A)
B)
C)
D)
A. Option D
B. Option C
C. Option B
D. Option A
Solutions:
| Question 1 Answer: B | Question 2 Answer: C,D | Question 3 Answer: A | Question 4 Answer: A | Question 5 Answer: B,C |
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