SALESFORCE-PD1 User Interface Practice Question
A developer is implementing error handling for an imperative Apex call in a Lightning Web Component. Which THREE properties or techniques are standard for catching and inspecting errors returned from Apex promises? (Choose THREE)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Using a .catch(error => { ... }) block on the returned promise.
Imperative Apex returns promises where errors can be caught in .catch(), inspected via error.body.message, or handled via standard JavaScript error objects.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Using a .catch(error => { ... }) block on the returned promise.
Why this is correct
Correct because imperative Apex returns a promise that uses .catch for error handling.
- ✓
Using try/catch blocks with asynchronous/await syntax when calling imperative Apex.
Why this is correct
Correct because async/await with try/catch is standard for handling promise rejections in modern JS.
- ✗
Reading error.stackTrace to automatically rollback database transactions on the client.
Why it's wrong here
Incorrect because client-side code cannot rollback server database transactions directly via stackTrace.
- ✗
Calling error.retry() to automatically re-execute the failed database transaction.
Why it's wrong here
Incorrect because no such retry method exists on standard error objects.
- ✓
Inspecting error.body.message to retrieve the specific error message thrown by Apex.
Why this is correct
Correct because Salesforce Apex errors are typically structured with a body containing the message.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Salesforce exam blueprint
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