Salesforce Interview Questions and Answers | Salesforce Interview for Freshers and Experienced

Salesforce Interview Questions and Answers Overview

Introduction to Salesforce

• Salesforce is the leading customer relationship management (CRM) platform, holding over 40% market share in cloud CRM and 19.7% overall.

• The session targets individuals preparing for roles such as Salesforce admin, developer, or consultant, and aims to enhance knowledge of various Salesforce concepts.

Agenda of the Session

• The session will cover important Salesforce interview questions and answers.

• Tips for becoming a proficient Salesforce developer will be discussed.

• Information on Salesforce certification training will also be provided.

What is Salesforce?

• Salesforce is a cloud-based software company that offers CRM services along with various software solutions for users and developers.

• It provides multiple products like Sales Cloud, Marketing Cloud, Service Cloud, Community Cloud, Analytics Cloud, and App Cloud tailored for different teams within an organization.

Understanding CRM

• CRM stands for Customer Relationship Management; it’s a strategy used by businesses to maintain relationships with customers.

• Benefits of using Salesforce CRM include enhanced communication with customers and improved customer service through better understanding of needs.

• It aids in analytical data improvement and reporting while automating repetitive tasks to focus on more critical activities.

Tabs in Salesforce

• A tab in Salesforce displays custom object data embedded within an application.

• Types of tabs include custom object tabs, web tabs, flexible page tabs, lightning page tabs, and Visualforce tabs.

Sandbox in Salesforce

• A sandbox is a copy of the production environment used for testing and development purposes without affecting the main production organization.

• Different types of sandboxes available are Developer Sandbox, Developer Pro Sandbox, Partial Data Sandbox, and Full Sandbox.

Lightning App Builder

• The Lightning App Builder is a drag-and-drop tool that allows users to create custom pages for mobile applications and Lightning Experience easily.

• Users can build single-page applications or dashboards tailored to specific needs like tracking sales prospects or customizing record pages.

Governance Limits in Salesforce

• Governance limits control the number of records stored in the shared database due to multi-tenancy architecture.

• Various governance limits include size-specific Apex limits per transaction, static Apex limits, email limits among others.

What is the Difference Between Salesforce.com and Force.com?

Overview of Salesforce.com and Force.com

• Salesforce.com: A software-as-a-service (SaaS) CRM application designed for customer relationship management.

• Force.com: A platform-as-a-service (PaaS) that enables developers and businesses to build customized enterprise applications.

• Key distinction: Salesforce.com focuses on data storage and application use, while Force.com emphasizes building operational applications connected to Salesforce data.

Understanding Visualforce

What is Visualforce?

• Visualforce: A framework allowing developers to create custom user interfaces hosted on the Lightning platform, utilizing a markup language similar to HTML.

• Use cases include developing user interfaces, defining custom tabs, customizing sidebars in the Salesforce console, creating help pages, and managing menus in Salesforce1.

Introduction to Lightning Component Framework

What is Lightning Component Framework?

• The Lightning Component Framework is a UI framework for developing web applications compatible with mobile and desktop devices.

• It supports single-page applications with dynamic responsive UIs using JavaScript, HTML-like markup languages, and CSS.

Roles vs. Profiles in Salesforce

Understanding Roles

• Roles control visibility levels of users regarding organizational data; higher-level users can access records owned by lower-level users (e.g., a sales VP accessing records from sales managers).

Understanding Profiles

• Profiles are collections of settings and permissions that dictate what actions users can perform within the application. For example, specific profiles may limit access only to sales-related applications.

Key Differences

• Unlike roles, having a profile is mandatory for every user; however, it’s not necessary for a user to have a role.

Differences Between Lightning Components and Lightning Web Components

Overview of Lightning Components

• Lightning Components serve as an interface framework for creating applications on the Salesforce platform across various devices.

Introduction to Lightning Web Components

• Lightning Web Components represent an updated web standards-based method for creating components that are simpler to define and develop due to alignment with modern web standards.

What is Salesforce Lightning?

Features of Salesforce Lightning

• Salesforce Lightning introduces a new user interface featuring enhanced design elements, productivity tools, and functionalities like artificial intelligence capabilities.

• Users can build personalized responsive applications without needing extensive coding knowledge.

Understanding Time Triggers in Salesforce

What are Time Triggers?

• Time-dependent actions executed at specific times (e.g., 10 days before a record's close date). Workflow rules re-evaluate records when time passes.

Examples of Time Triggers

• Automate tasks such as scheduling calls or sending emails based on predefined time triggers.

Object Relationships in Salesforce

Understanding Objects

• Objects function as database tables storing organization-specific data within Salesforce. There are two types:

• Standard Objects: Provided by Salesforce (e.g., accounts, contacts).

• Custom Objects: Created by users tailored to unique organizational needs.

Types of Object Relationships

• Major relationships include:

• Lookup Relationship: Links objects without dependency on parent objects.

• Master-detail Relationship: Tightly connects parent-child objects where deletion of the parent also deletes child details.

• Many-to-many Relationship: Allows linking multiple records between two objects.

Salesforce Relationships and APIs

Differences Between Lookup and Master-Detail Relationships

• In a lookup relationship, when one object record is deleted, the other does not get deleted. This contrasts with a master-detail relationship where deletion of the master record results in the deletion of detail records.

Overview of Salesforce APIs

• Salesforce offers various APIs for different integration needs:

• The REST API allows integration using simple HTTP methods in XML or JSON formats, ideal for mobile applications or external clients.

• The Bulk API provides programmatic access to quickly load data into Salesforce organizations.

• The Streaming API sends notifications for changes to Salesforce data based on defined SOQL queries, useful for real-time updates.

Salesforce Lightning Design System

Purpose and Functionality

• The Salesforce Lightning Design System (SLDS) is a CSS framework and component library that aids developers in creating user interfaces aligned with Salesforce Lightning principles. It supports building lightning pages and components across various platforms like Android, iOS, and Heroku.

Understanding Audit Trail

Tracking Changes in Setup

• An audit trail tracks recent setup changes made by administrators within the last six months. Users need permission to view setup configurations to access details such as change timestamps, users who made changes, and specific modifications made.

Defining Workflow in Salesforce

Automation of Business Processes

• A workflow automates tasks related to specific business processes in Salesforce, enabling actions like sending email alerts, outbound messages, task automation, or field updates based on predefined criteria.

External IDs in Salesforce

Unique Identifiers for Records

• An external ID is a custom field used as a unique identifier during record imports; it must be marked as such among other fields like text, numbers, emails, or auto numbers which should remain unique within each record context.

Reports in Salesforce

Definition and Use Case

• A report is essentially a list of records meeting defined criteria displayed in rows and columns that can be filtered according to specific objects; it helps track metrics such as sales performance across courses offered by an organization (e.g., identifying highest-selling courses).

Dashboards in Salesforce

Visual Representation of Data

• A dashboard serves as a graphical representation derived from reports or multiple reports showcasing key metrics through visual components; each component corresponds to an underlying report providing insights into organizational performance indicators.

Types of Reports Available in Salesforce

Report Categories Explained

1. Tabular Reports: Basic format displaying rows of data with grand totals.

2. Summary Reports: Commonly used reports allowing groupings with subtotals based on different criteria.

3. Metric Reports: More complex reports grouping records by both rows and columns for comparative analysis.

4. Joined Reports: Enable grouping from multiple report types organized into blocks with customizable fields including formulas and filters for detailed insights into varied datasets.

Bucket Fields in Reports

Custom Categorization

• A bucket field allows users to create custom categories within reporting frameworks without needing complicated formulas; it facilitates grouping or filtering related records effectively by ranges or segments based on user-defined parameters.

Dynamic Dashboards and Salesforce Components

Understanding Static vs. Dynamic Dashboards

• Static dashboards display data from a single user's perspective, making them basic dashboard types visible to any user who has created a report.

• Dynamic dashboards are tailored for specific users, allowing personalized views of reports, such as a sales manager viewing data relevant only to one team member.

Salesforce Dashboard Components

• The first component is charts, which visually represent data in various formats: horizontal bar, vertical bar, line, pie, donut, and funnel charts.

• Goals are used to show single values within custom ranges (e.g., monthly revenue categorized as high, medium, or low).

• Metrics display key values like total product sales for the month on the dashboard.

• Tables present report data in column format; for instance, showing the top five selling products for the current month.

• Visualforce pages allow for custom components or information not available through standard components.

Data Skew in Salesforce

• Data skew refers to non-uniform distribution leading to stuck stages and tasks; it often occurs with large datasets (over 10,000 records).

• Types of data skew include:

• Account Data Skew: Too many child records linked to one parent object.

• Ownership Skew: A single user owning over 10,000 records.

• Lookup Skew: Many records associated with a single record in a lookup object.

Skinny Tables in Salesforce

• Skinny tables improve performance by accessing frequently used fields without requiring joins; they contain both standard and custom fields while omitting soft-deleted records.

• Considerations for skinny tables include:

• Maximum of 100 columns allowed per table.

• Cannot contain fields from other objects or soft-deleted rows.

• Requires contacting Salesforce support for recreation or addition of new tables.

Apex Programming Language Overview

• Apex is an object-oriented programming language developed by Salesforce.com that allows execution of flow and transaction control statements on the Force.com platform. Its syntax is similar to Java (70% similarity).

Collections in Apex

• There are three main types of collections:

• Lists: Ordered collections distinguished by indexes; can hold any data type including primitive and user-defined types.

• Sets: Unordered collections without duplicates; elements can also be any data type.

• Maps: Collections of key-value pairs where each unique key maps to a single value.

Getters and Setters in Apex

• The get method passes values from the controller to the Visualforce page while the set method assigns values back to controller variables.

What is an Interface in Apex?

Understanding Interfaces

• An interface in Apex is similar to a class but contains only method signatures without implementations; the body of each method remains empty.

• To utilize an interface, another class must implement it by providing concrete bodies for all methods defined within that interface.

• All interfaces in Apex are global, and their methods are inherently public and abstract.

What is SOQL?

Salesforce Object Query Language

• SOQL stands for Salesforce Object Query Language, designed specifically for querying Salesforce data.

• It resembles SQL but is tailored to retrieve data from the Salesforce platform and can be used with Apex and Visualforce.

Button Overriding in Salesforce

Customizing Standard Buttons

• Button overriding allows customization of standard buttons like New, View, or Edit across different environments (Salesforce Classic, Lightning Experience, Mobile).

• You can also override the tab home page displayed when users click on standard custom or external object tabs.

Standard Controller vs. Custom Controller

Key Differences

• A standard controller inherits all properties and functionalities of standard objects directly from Salesforce.

• In contrast, a custom controller implements all logic independently without relying on a standard controller; it's linked to Visualforce pages via the controller attribute.

Understanding Who ID and What ID

Identifying Record Types

• "Who ID" refers to human-related records such as Lead IDs or Contact IDs representing people.

• "What ID" pertains to non-human objects like Account IDs or Opportunity IDs representing entities such as accounts or campaigns.

Outbound Messages in Salesforce

Automation Functionality

• Outbound messages enable sending messages to external web services when records are created or updated within Salesforce.

• These messages can include field values necessary for triggering processes in external systems and can be initiated through workflows or approval processes.

Calling Controller Methods from JavaScript

Using Action Functions

• To invoke an Apex function from JavaScript, you use action functions which facilitate this interaction seamlessly.

Batch Apex Overview

Processing Large Jobs Efficiently

• Batch Apex allows processing large jobs asynchronously by breaking them into manageable batches instead of exceeding normal processing limits.

Implementing Batch Apex Methods

Required Methods for Batch Processing

• To implement Batch Apex, create a class that implements the Database.Batchable interface and define three essential methods:

• Start Method: Collect records at the beginning of the batch job.

• Execute Method: Perform operations on records fetched from the start method.

• Finish Method: Execute after all batches are processed; typically used for sending confirmation notifications.

SOQL vs. SOSL Differences

Comparing Query Languages

• SOQL retrieves entire records while SOSL focuses on performing text searches across multiple objects simultaneously.

Salesforce SOQL vs SOSL: Key Differences

Understanding SOQL and SOSL

• SOQL vs SOSL: SOQL (Salesforce Object Query Language) retrieves records from a single object, while SOSL (Salesforce Object Search Language) can search across multiple objects simultaneously.

• Field Types: SOQL allows querying any field type, whereas SOSL is limited to searching email, text, or phone number fields.

Editing Apex Classes in Production

Apex Class and Trigger Limitations

• Production Environment Restrictions: Direct editing of Apex classes or triggers is not permitted in the production environment; changes must be made in a developer sandbox or testing organization.

What is an Apex Trigger?

Functionality of Apex Triggers

• Custom Actions: An Apex trigger performs custom actions on Salesforce records before or after events such as insertion, updating, or deletion.

• Conditional Operations: Triggers can modify related records or restrict operations based on specific conditions.

Types of Apex Triggers

Before and After Triggers

• Before Trigger: Executes to validate record values prior to saving them to the database.

• After Trigger: Executes to validate record values after they have been saved to the database.

Calling an Apex Class in Salesforce

Methods for Invoking Apex Classes

• Invocation Methods: An Apex class can be called from various sources including Visualforce pages, developer console, JavaScript links, triggers, other classes, and homepage components.

User Profiles in Salesforce

Sharing Profiles Among Users

• Profile Assignment Flexibility: Multiple users can share the same profile in Salesforce. This allows teams (e.g., HR teams with access to candidate data) to collectively access crucial information.

Becoming a Salesforce Developer

Prerequisites and Recommendations

• Educational Background: While there are no strict prerequisites for becoming a Salesforce developer, companies often prefer candidates with a bachelor's degree in computer science or related fields.

Essential Skills for Salesforce Development

Key Technologies to Learn

• Visualforce Importance: Learning Visualforce is essential for creating custom user interfaces on the Salesforce platform.

• Apex Programming Language: Knowledge of Apex is crucial for adding business logic through controller code within applications.

Additional Skills and Resources

Expanding Technical Proficiency

• Web Development Tools: Familiarity with JavaScript, HTML5, CSS programming languages along with tools like Eclipse IDE and Git will enhance development capabilities.

Learning Resources for Salesforce Developers

Online Courses and Certifications

• Utilizing Online Platforms: Various online courses are available that cover both basic and advanced aspects of Salesforce development.

• Trailhead Platform: Trailhead offers free resources combining theory and practical learning experiences tailored for aspiring developers.

Importance of Certification Training

Benefits of Certification Preparation

• Certification Value: Preparing for certifications improves knowledge depth and enhances job prospects since organizations prefer certified professionals due to quality assurance concerns.