Top 30 Salesforce Developer Interview Questions and Answers [Updated 2025]

In a recent project, I was part of a team tasked with implementing Salesforce for a client. My role was to develop custom Apex classes and handle data integration. We used Agile methodology for collaboration, holding daily stand-ups to ensure alignment. The outcome was a successful deployment that improved the client's sales tracking by 30%.

In a recent project, we faced a major data inconsistency issue during an integration with an external system. The data was not mapping correctly, causing fields to be mispopulated. I led the troubleshooting effort by reviewing both systems' data structures and worked with the vendor to fix the API mismatch. After implementing the solution, we validated data accuracy, which improved our integration reliability.

In my previous role, I led a team of 5 on a Salesforce implementation project. I organized the team by assigning roles based on each member's strengths. We held daily stand-ups to ensure everyone was aligned. One major challenge was integrating third-party tools, but through teamwork and communication, we successfully completed the project on time. The implementation increased our sales team's efficiency by 30%.

Yes, when Salesforce introduced Lightning Web Components, I immediately reviewed the official Salesforce documentation and took a focused trail down the Salesforce Trailhead. I then set up a Developer Org to experiment with the features in real time and sought advice on forums like Stack Exchange.

In a Salesforce project, I disagreed with a colleague who wanted to use a complex Apex trigger. I explained my concern about maintainability and suggested a process builder instead. We discussed both options and after considering the pros and cons together, we agreed to use the process builder, which simplified the implementation. It taught me the importance of collaborative decision-making.

At my previous job, the sales team struggled with manual order processing, leading to delays. I developed a custom Visualforce app that automated order entry and integrated with our inventory system. As a result, processing time was reduced by 50%, and order errors decreased by 30%.

In a recent project, a client was struggling with data migration due to corrupted records. I took the initiative to clean the data myself and worked overtime to ensure all records were accurately imported before the deadline. The client was extremely grateful and praised our attention to detail, leading to a continued partnership.

I manage governor limits by first familiarizing myself with the various types of limits that Salesforce imposes. I optimize my SOQL queries to fetch only the fields I need and limit the number of records returned whenever possible. Additionally, I use bulk processing techniques to handle large datasets efficiently.

A master-detail relationship tightly links two objects, where the detail record's lifecycle depends on the master record. In contrast, a lookup relationship allows for a more loose association where the detail record can exist independently.

To develop a trigger in Salesforce, I first determine the object and event it should respond to. For example, I create a trigger on the Account object to execute 'before insert' to set a default value. I then write the trigger code using proper syntax, implementing any necessary logic that checks conditions and performs actions, like updating fields. Finally, I test the trigger with various scenarios to ensure it handles bulk operations well and doesn't hit governor limits.

Visualforce is a framework for building custom user interfaces in Salesforce. It uses a tag-based syntax and is designed primarily for Classic. In contrast, Lightning Components are part of the newer Lightning framework, providing a more modern responsive design and improved performance. Key differences include Visualforce's reliance on server-side rendering compared to Lightning's component-based architecture that promotes client-side rendering.

I would create an Aura component with an HTML template that binds to account attributes. Then, I would use an Apex class to fetch account data and call it in the JavaScript controller. The data would be stored in component attributes and displayed dynamically in the template.

I typically use REST and SOAP APIs for integrating third-party systems with Salesforce, as they allow for robust data exchange. For more complex needs, I leverage MuleSoft to handle data transformations effectively.

To write efficient SOQL queries, I always use selective filters and avoid SELECT * by only querying the fields I need. This helps improve performance and reduces data transfer.

I handle data security by fully understanding and implementing Salesforce's security model, using profiles and roles to control access, and applying field-level security for sensitive data. I also utilize validation rules to maintain data integrity.

I prioritize unit testing to ensure my code is reliable and maintainable. I write comprehensive test classes using the @isTest annotation, creating test data within each test method to cover various scenarios. I always aim for at least 75% code coverage before deploying, and I use the Developer Console to check my code coverage metrics.

First, I prepare change sets in the sandbox by including all necessary components like Apex classes and custom objects. Then I ensure everything is tested thoroughly. After that, I upload the change set to the production environment and check for any deployment issues.

Salesforce CPQ stands for Configure, Price, Quote. It helps sales teams create accurate quotes quickly by using pre-defined pricing rules. To implement it for a customer with complex pricing, I'd first analyze their pricing models, configure products and pricing rules in CPQ, and ensure thorough testing before training users.

To design workflows in Salesforce, I first analyze the business process and gather requirements. Then, I utilize Process Builder to automate the actions based on specific criteria. After setting it up, I test it in a sandbox to ensure everything works smoothly before activating it.

To estimate the time for the project, I would start by clearly defining the scope and requirements. Then, I'd assess the complexity of any required integrations and consider the team's expertise. It’s also crucial to factor in potential risks and allow time for both testing and user training.

I would start by acknowledging the client's request and thank them for their input. Then, I'd explain my concerns about the proposed solution and support my reasoning with data on potential drawbacks. I'd suggest a more effective approach, highlighting its benefits, and invite the client to share their thoughts and preferences.

First, I identify the bug's impact by talking to users affected and assessing urgency. Then, I reproduce it in a sandbox environment to pinpoint the issue. I check logs for any exceptions or error messages. If it's critical, I implement a quick workaround to mitigate user impact, followed by planning and testing a permanent fix before deployment.

I would first analyze the logs to identify any specific error messages. Then, I would inform the stakeholders about the issue and the steps I'm taking. If the feature is critical, I might revert to an earlier version until the issue is resolved.

I would first ask the client about their main business objectives to ensure the customization aligns with their goals. Then, I would dive into their current processes to identify what is not working well. Following that, I'd ask what specific features they would like to see and how different users will interact with these features. Finally, I would confirm their timeline for implementation and any budget considerations.

I would analyze the sales team's feedback to find pain points, then implement workflow rules to automate lead assignments, improving response time.

I prioritize tasks by first assessing their impact on business goals. I focus on projects that align with company objectives and deadlines, and communicate with stakeholders to understand which ones need to be completed first. I use tools like Trello to visualize and manage my tasks effectively.

I would reach out to the team and ask for their insights on why they're not using the feature. Understanding their challenges will help me make necessary adjustments or provide better training.

I appreciate the feedback and will certainly take it seriously. Could you please share specific areas where your expectations were not met? I want to ensure we address all the issues accurately. I'll investigate this further and propose solutions that best fit your needs.

I would start by reviewing the report filters to ensure they are optimized and not pulling unnecessary data. Then, I would check the execution time in Salesforce to pinpoint any slow areas. After that, I would look at any scheduled jobs to see if they are causing performance hits.

I would first gather the specific requirements from the requester. Then, I'd assess how the proposed customization might clash with Salesforce's upgrade path. If the conflict is significant, I would propose alternative solutions, such as using custom objects or out-of-the-box features, ensuring we stay upgrade-ready.