30+ TCS Salesforce Developer Interview Questions and Answers

Explaining the difference between Roles & Profiles, Workflow-ProcessBuilder-Flow, types of Workflow, and Trigger context variables.

• Roles define the level of access a user has to records in an organization, while profiles define the level of access a user has to objects and fields.

• Workflow, Process Builder, and Flow are automation tools used to automate business processes in Salesforce.

• Workflow rules are used to automate standard internal procedures and processes to save time ...read more

Batch class is used to process large data sets in chunks. Stateful interface maintains state between batches.

• Batch class implements Database.Batchable interface

• It has three methods: start(), execute() and finish()

• Stateful interface is used to maintain state between batches

• Stateful variables can be declared outside of the execute() method

• Example: Batch class to update all accounts with a specific field value

Salesforce is a cloud-based CRM platform. Governor limits are limits on resources. Profiles and roles control access. Visualforce and Apex are development tools.

• Salesforce is a cloud-based CRM platform used for managing customer data and interactions.

• Governor limits are limits on resources such as CPU time, database queries, and API calls.

• Profiles and roles control access to data and functionality within Salesforce.

• Visualforce is a development tool used for creating custom us...read more

Decorators in LWC are used to modify the behavior of a component. Data passing between LWC components can be done using properties and events. Salesforce Sales and Service Cloud are CRM platforms. Order of execution in Salesforce refers to the sequence in which operations are performed. Deployment in Salesforce is done using tools like Salesforce DX. Case management process involves tracking and resolving customer issues. Salesforce integration allows different systems to com...read more

Various factors can cause data loss in Salesforce.

• Human error such as accidental deletion or overwriting of data

• System failures or crashes

• Data migration or integration errors

• Malicious intent or hacking

• Expiration of data retention policies

• Third-party app or plugin issues

Components under a Lightning Aura Bundle

• A Lightning Aura Bundle can contain multiple components

• These components can be of different types such as Lightning Component, Apex Class, etc.

• The components can communicate with each other using events

• The bundle can also contain design resources like CSS and images

Best practices for Apex class and Test class

• Use meaningful class and method names

• Write clear and concise code

• Use comments to explain complex logic

• Write test classes to cover all scenarios

• Use System.assert() to validate expected results

• Avoid hardcoding values

• Use try-catch blocks to handle exceptions

• Avoid SOQL queries and DML statements in loops

• Use @isTest annotation for test classes

• Use Test.startTest() and Test.stopTest() to test governor limits

Salesforce will continue to be a leading CRM platform, enabling businesses to streamline their operations and improve customer engagement.

• Salesforce will continue to innovate and introduce new features and functionalities.

• It will enable businesses to leverage AI and machine learning to gain insights and improve decision-making.

• Salesforce will also play a key role in digital transformation initiatives, helping businesses to modernize their operations and stay competitive.

• Examp...read more

Apex program to fetch opportunity data based on stage details

• Create a SOQL query to fetch all the opportunity records with the required stage details

• Use a for loop to iterate through the query results and store the data in a list

• Return the list of opportunity data to the calling method or class

• Example: List oppList = [SELECT Id, Name, StageName FROM Opportunity WHERE StageName = 'Closed Won'];

Master-detail relationship is a type of relationship in Salesforce where the master record controls certain behaviors of the detail record.

• Master-detail relationship is a parent-child relationship where the master record controls certain behaviors of the detail record.

• The detail record inherits certain fields, security, and sharing settings from the master record.

• Deleting a master record automatically deletes all its detail records.

• A detail record cannot exist without a maste...read more

I have primarily followed Agile methodology in my previous projects.

• Utilized Scrum framework for sprint planning and daily stand-ups

• Emphasized collaboration, adaptability, and continuous improvement

• Prioritized delivering working software in short iterations

LWC is a programming model for building Lightning web components on the Salesforce platform.

• LWC stands for Lightning Web Components.

• It is a modern UI framework for building web components using HTML, CSS, and JavaScript.

• LWC allows developers to build reusable components that can be used in Salesforce applications.

• LWC provides a way to interact with Salesforce data and metadata using JavaScript controllers.

Create a trigger on Contact object to update Account phone number field when contact mobile number is changed.

• Create an Apex trigger on Contact object

• Use trigger to update related Account phone number field

• Consider bulk updates and handle trigger recursion

C++ is a high-level programming language used for developing system software, game engines, and other performance-critical applications.

• C++ is an extension of the C programming language.

• It supports object-oriented programming, templates, and low-level memory manipulation.

• C++ is used in developing operating systems, device drivers, game engines, and financial software.

• Examples of software written in C++ include Adobe Photoshop, Microsoft Office, and MySQL.

• C++ is also used in t...read more

Tasks are distributed based on priority, resources, and deadlines.

• Tasks are assigned to team members based on their skills and availability.

• Priority tasks are usually assigned first to ensure they are completed on time.

• Deadlines play a crucial role in task distribution to ensure timely completion.

• Resource allocation is considered to distribute tasks efficiently.

Pagination in LWC involves using frameworks and best practices to efficiently display large sets of data.

• Use Lightning Data Service to fetch data efficiently

• Implement server-side pagination to reduce load times

• Consider using third-party libraries like Lightning Datatable with Infinite Scrolling

• Optimize queries and data retrieval to improve performance

Use Apex controller to query contacts with similar names as input text

• Create an Apex controller method to query contacts with similar names using SOQL query

• Pass the input text from LWC component to the Apex controller method

• Return the list of contact names as an array of strings to the LWC component

Salesforce data security model ensures data privacy and integrity through various features and settings.

• Salesforce uses a role hierarchy to control access to data based on user roles.

• Record-level security can be implemented using sharing rules and criteria-based sharing.

• Field-level security can be set to restrict access to certain fields on objects.

• Data encryption at rest and in transit ensures data is secure.

• Audit trails and login history tracking help monitor data access an...read more

Indirect lookup is used to find related records through a junction object while external lookup is used to find related records in an external system.

• Indirect lookup is used when there is a many-to-many relationship between two objects.

• External lookup is used when the related record is stored in an external system.

• Indirect lookup uses a junction object to connect two objects.

• External lookup uses an external ID field to connect two objects.

• Examples of indirect lookup include c...read more

Java is a popular programming language used for developing various applications.

• Java is an object-oriented language

• It is platform-independent

• It is used for developing web, mobile, and desktop applications

• Java is widely used in enterprise applications

• It has a large community and extensive documentation

• Examples of Java-based applications include Android apps, banking systems, and e-commerce websites

Sales Cloud and Service Cloud are two different modules of Salesforce CRM platform, designed for sales and customer service respectively.

• Sales Cloud is focused on sales automation, lead management, and opportunity management.

• Service Cloud is focused on customer support, case management, and service automation.

• Sales Cloud helps sales teams close deals faster, while Service Cloud helps customer service teams deliver personalized support.

• Both Sales Cloud and Service Cloud are pa...read more

Service Cloud is a customer service platform that helps companies provide personalized support to their customers.

• Service Cloud allows companies to track customer interactions across multiple channels such as phone, email, social media, and chat.

• It provides a 360-degree view of each customer, enabling agents to deliver personalized and efficient support.

• Service Cloud includes features like case management, knowledge base, and omni-channel routing to streamline customer servic...read more

Decorators in LWC are functions that are used to modify the behavior of class properties or methods.

• Decorators are used to add metadata to class properties or methods in Lightning Web Components.

• They are defined using the @ symbol followed by the decorator name.

• Decorators can be used for various purposes such as tracking changes, validating input, or handling events.

• Example: @api decorator is used to expose a public property in LWC.

The problems faced by Salesforce Developers

• Integration challenges with external systems

• Complex data modeling and customization requirements

• Performance optimization for large data volumes

• Maintaining data integrity and security

• Keeping up with frequent Salesforce updates and releases

Triggers in Salesforce are pieces of code that are executed before or after specific events occur.

• Types of triggers: Before Insert, Before Update, Before Delete, After Insert, After Update, After Delete, After Undelete

• Examples: Before Insert trigger to validate data, After Update trigger to send email notifications

Events in Omniscript allow for dynamic interactions with the user.

• Events can be triggered by user actions or system events

• Events can be used to show/hide components, update fields, or navigate to different steps

• Examples include onClick, onChange, and onInit

Sales Cloud is a customer relationship management (CRM) platform designed to manage sales, customer service, and marketing in one place.

• Sales Cloud helps businesses track customer information, sales leads, and opportunities.

• It provides tools for managing contacts, accounts, leads, opportunities, and analytics.

• Sales Cloud allows for automation of sales processes, forecasting, and collaboration among team members.

• Examples of Sales Cloud features include lead management, opportu...read more

Order of execution in Salesforce determines the sequence of events that occur when a record is saved.

• Validation rules are executed first

• Before triggers are executed next

• Custom validation rules are executed after before triggers

• After triggers are executed next

• Assignment rules are executed after after triggers

• Workflows are executed after assignment rules

• Escalation rules are executed after workflows

• Processes are executed after escalation rules

• Roll-up summary fields are calculate...read more

Triggers are pieces of code that are executed before or after specific data manipulation events occur in Salesforce.

• Triggers are used to perform custom actions like updating related records or sending email notifications.

• They can be written in Apex and are executed when records are inserted, updated, or deleted.

• Triggers can be set to run before or after the data manipulation event.

• They are essential for automating business processes and enforcing data consistency in Salesforc...read more