Salesforce Interview Questions and Answers for 10 years experience
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What are the different types of Salesforce licenses?
- Answer: Salesforce offers various licenses catering to different user roles and needs. These include Sales Cloud licenses (Salesforce Sales Cloud Essentials, Sales Cloud, Sales Cloud Unlimited), Service Cloud licenses (Service Cloud Essentials, Service Cloud, Service Cloud Unlimited), and various other licenses such as Community Cloud, Marketing Cloud, and Platform licenses (Developer Edition, Enterprise Edition, Unlimited Edition). The differences lie in features, storage limits, and user access permissions.
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Explain the difference between a trigger and a workflow rule.
- Answer: Both triggers and workflow rules automate processes, but they differ significantly. Workflow rules operate on individual records and are primarily used for simple automation tasks like sending email alerts or updating fields based on record criteria. Triggers, on the other hand, are Apex code that execute before or after DML operations (insert, update, delete, upsert, undelete) on records, allowing for more complex logic and greater control over data manipulation. Triggers offer far more flexibility and power for complex automation scenarios.
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What are governor limits in Salesforce? Why are they important?
- Answer: Governor limits are restrictions placed on Apex code execution to ensure the stability and performance of the Salesforce platform. They limit things like the number of SOQL queries, DML operations, CPU time, heap size, and more. Understanding and adhering to these limits is crucial for preventing performance issues, errors, and ensuring the application runs smoothly. Exceeding governor limits can result in runtime exceptions and application failures.
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Describe your experience with Apex classes and triggers. Provide an example.
- Answer: (This answer needs to be personalized based on the candidate's experience. A good answer would include specific examples of complex triggers or classes they've built, explaining the logic and the challenges overcome. For example: "I've extensively used Apex to create triggers for automated record updates, such as updating related records upon a primary record change. One specific example was a trigger that updated inventory levels upon order creation and ensured stock levels weren't exceeded. This involved complex SOQL queries, error handling, and careful governor limit management. I also built an Apex class to handle bulk data processing, significantly improving performance compared to using standard Salesforce tools.")
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How do you handle data migrations in Salesforce?
- Answer: Data migration involves a structured approach. It starts with assessing the source and target systems, identifying data mapping rules, data cleansing, and validation. Tools like Data Loader, the Salesforce Data Import Wizard, or third-party migration tools can be used, depending on data volume and complexity. Testing and validation are critical steps to ensure data integrity post-migration. I typically employ a phased approach, starting with a pilot migration to a sandbox environment before migrating to production.
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What are different ways to implement security in Salesforce?
- Answer: Salesforce offers robust security features. These include profile and permission sets for controlling user access, sharing rules and organization-wide defaults for managing data visibility, role hierarchy to establish a clear reporting structure, and utilizing features like permission sets, Apex security, and validation rules to enforce business logic and data integrity. Regular security reviews and audits are also crucial.
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Explain your experience with Salesforce reports and dashboards.
- Answer: (This needs a personalized answer detailing the candidate's experience with report types, report building, dashboard creation, and any advanced reporting techniques used like matrix reports or summary reports. Mention specific examples of reports and dashboards built and the business value they delivered.)
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What are some common performance optimization techniques in Salesforce?
- Answer: Performance optimization in Salesforce involves various strategies, including using bulk operations (like Database.insert, Database.update, Database.delete) instead of individual DML operations, optimizing SOQL queries (using appropriate WHERE clauses and avoiding SELECT *), using appropriate data types, leveraging caching mechanisms, and minimizing the use of unnecessary triggers and workflow rules. Regularly reviewing performance metrics using tools like the Salesforce Profiler is crucial.
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How familiar are you with Visualforce and Lightning Web Components (LWC)? What are the differences?
- Answer: (The answer should describe experience with both. It should highlight the differences: Visualforce is based on JSP and is more mature, while LWC leverages modern web standards like JavaScript, HTML, and CSS, offering better performance, developer experience, and integration with the Lightning platform. Mention examples of projects utilizing either technology.)
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