Apex

Check out all the Salesforce Apex Tutorials.

Queueable Apex Chaining in Salesforce (Complete Guide with Examples & Best Practices)

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Implement Queueable Interface in Salesforce Apex

In Salesforce, handling large data processing and long-running operations can be challenging using synchronous Apex. To solve this problem, Salesforce provides asynchronous processing options like Future methods, Batch Apex, and Queueable Apex. Among these, Queueable Apex is widely used because it offers greater flexibility, supports complex data types, and enables job chaining. The queueable apex … Read more >>>

Trigger.Old in Salesforce Apex Trigger

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Display Custom Error Messages in Salesforce Apex

In Salesforce Apex, understanding Trigger.old is very important for handling record updates and deletes efficiently. In this article, we will not only learn what Trigger.old is, but also explore real-time use cases, differences with Trigger.new and Trigger.oldMap, and common mistakes developers make. By the end, you will be confident in using Trigger.old in real Salesforce … Read more >>>

Convert Apex List to Set and Map Collections in Salesforce

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Convert Apex List to Set and Map Collections in Salesforce

When you work with real-world Apex code, you almost always end up converting between List, Set, and Map to make your logic cleaner and faster. While working with List collections in Apex, you often encounter situations such as removing duplicate values or accessing records by their IDs. Instead of writing extra logic to handle these … Read more >>>

Collections in Salesforce Apex [List, Set, & Map Explained]

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Salesforce Set Collection

Collections in Apex (List, Set, and Map) are simply ways to store and manipulate multiple values in a single variable. In day‑to‑day Salesforce development, you use them all the time in SOQL queries, triggers, and batch jobs to stay within governor limits and keep your code clean. While working as a Salesforce developer, I was tasked … Read more >>>

Contains() Method in Salesforce Apex with Real-Time Examples

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Contains() Method in Salesforce Apex

When you start writing Apex code, one thing you quickly realize is that most of your logic depends on checking values. You need to check: And in all these situations, one small but powerful method helps you: the contains() method. In this article, we will learn about how to use the contains() method in Salesforce … Read more >>>

Automate Processes Using Apex Triggers in Salesforce [Detailed Guide]

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Create Apex Trigger in Salesforce

As a Salesforce Developer, I was assigned the task of automating the process of assigning high-priority cases (e.g., “Critical” or “High”) to a specialized support team. This should happen when a case is created or its priority is changed. To fulfill this requirement, I need to develop an Apex trigger program. In this tutorial, I will explain how … Read more >>>

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