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🚀 Top 20 Salesforce Interview Questions & Answers (With Real-Time Scenarios)

Are you preparing for a Salesforce Developer or Admin interview?
Good news 👉 I’ve collected 20 of the most commonly asked Salesforce interview questions along with updated answers, real-time examples, and tips.

Whether you’re a fresher or experienced, this guide will help you crack interviews with confidence.


1️⃣ What is the difference between Workflow, Process Builder, and Flow?

Answer:

💡 Tip: Always say you prefer Flow in new projects since Salesforce announced Workflow & Process Builder retirement.


2️⃣ How do you prevent recursion in Apex triggers?

Answer:
Use a static Boolean variable in a helper class.
Example:

public class TriggerHandler {
    private static Boolean runOnce = true;
    public static void handleTrigger(List<Account> accounts) {
        if(!runOnce) return;
        runOnce = false;
        // business logic here
    }
}

💡 Tip: Interviewers want to see if you understand best practices in trigger frameworks.


3️⃣ Explain @wire vs imperative Apex in LWC.

Answer:


4️⃣ What is a Mix DML error and how to handle it?

Answer:
Occurs when setup & non-setup objects (e.g., User + Account) are modified in the same transaction.
✅ Fix: Move one DML into @future or Queueable Apex.


5️⃣ Difference between SOQL and SOSL?

SOQL: Query specific objects/fields, returns structured results.
SOSL: Full-text search across multiple objects, returns records from different objects.


6️⃣ Future vs Batch vs Queueable vs Scheduled Apex


7️⃣ How do you handle bulk DML in triggers?


8️⃣ What is Lightning Data Service (LDS) in LWC?


9️⃣ Can Flow replace Apex triggers?


🔟 Explain Test.startTest and Test.stopTest.


1️⃣1️⃣ 15-digit vs 18-digit Salesforce IDs


1️⃣2️⃣ Calling Apex method from Flow


1️⃣3️⃣ Trigger Context Variables


1️⃣4️⃣ Explain @AuraEnabled annotation


1️⃣5️⃣ How to schedule a batch job daily at 2 AM?

System.schedule('Daily Batch', '0 0 2 * * ?', new MyBatchClass());

1️⃣6️⃣ What are Governor Limits?

Salesforce’s way to protect multi-tenant environment:

💡 Tip: Always mention “Bulkification & best practices help avoid hitting limits.”


1️⃣7️⃣ SOQL for parent-child relationship

SELECT Name, (SELECT LastName FROM Contacts) FROM Account
SELECT Id, Account.Name FROM Contact

1️⃣8️⃣ What is a Wrapper Class?

A custom class to wrap multiple fields/objects into a single structure.
✅ Used in batch processing, LWC, VF tables, checkboxes.


1️⃣9️⃣ Salesforce Order of Execution

Validation → Before Triggers → Custom Validation → After Triggers → Assignment Rules → Workflow → Process Builder → Flow → Commit.


2️⃣0️⃣ Explain Continuous Integration (CI) in Salesforce

CI automates builds & deployments using GitHub, Jenkins, Bitbucket, or Copado.
Ensures code quality, collaboration, and faster releases.


🔑 Final Takeaway

👉 If you can confidently answer these 20 Salesforce interview questions with examples and code, you’ll stand out in interviews.
👉 Don’t just memorize definitions – explain scenarios where you’d use Flow, Apex, LWC, or integrations.

🔥 Want 500+ Real Salesforce Questions & Notes?
Check out my curated interview packs 👉 TrailheadTitansHub.com

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