Unleash the Power of Custom Labels in Salesforce: A Developer’s Guide

Introduction

Custom labels in Salesforce offer developers a powerful tool for creating more flexible and dynamic applications. In this guide, we’ll delve into the depths of custom labels and explore how they can be leveraged across various areas of Salesforce development. Whether you’re new to Salesforce or a seasoned developer, this comprehensive tutorial will equip you with the knowledge and skills to harness the full potential of custom labels.

This article covers:

• What are Custom Labels?
• Using Custom Labels in Lightning Web Components (LWC)
• Using Custom Labels in Visualforce Pages
• Using Custom Labels in Aura Components
• Using Custom Labels in Apex
• Using Custom Labels in Flow
• Conclusion

Watch the recorded session here

What are Custom Labels?

Custom labels are customizable text strings that can be accessed from Apex classes, Visualforce pages, Lightning components, Flows and more. They provide a convenient way to manage static text that may need to be translated into multiple languages or updated frequently. With custom labels, developers can centralize and streamline text management, improving application maintainability and scalability.

Using Custom Labels in Lightning Web Components (LWC)

Custom labels can be seamlessly integrated into Lightning web components to provide localized and customizable text. Let’s take a look at how to use custom labels in an LWC.

HTML Code

<!-- myComponent.html -->
<template>
    <p>{labelName}</p>
</template>

JS Code

// myComponent.js
import { LightningElement } from 'lwc';
import labelName from '@salesforce/label/c.LabelName';

export default class MyComponent extends LightningElement {
    labelName = labelName;
}

Explanation:

In the HTML code, we’re displaying the value of a custom label named “LabelName” using curly braces syntax. In the JavaScript code, we’re importing the custom label and assigning it to a property, which can then be used in the template.

Using Custom Labels in Visualforce Pages

Custom labels are equally valuable in Visualforce pages for maintaining consistency and facilitating easy updates. Here’s how to incorporate custom labels into a Visualforce page.

HTML Code

<!-- myPage.page -->
<apex:page>
    <p>{!$Label.LabelName}</p>
</apex:page>

Explanation:

In the Visualforce page, we’re displaying the value of the custom label “LabelName” using the “$Label” global variable.

Example: {!$Label.Common_Error}

Using Custom Labels in Aura Components

Aura components can also benefit from the use of custom labels to ensure consistent messaging throughout the application. Here’s how to integrate custom labels into an Aura component.

HTML Code

<!-- myComponent.cmp -->
<aura:component>
    <p>{!$Label.c.LabelName}</p>
</aura:component>

Explanation:

Similar to Visualforce, we’re referencing the custom label “LabelName” using the “$Label” global variable in the Aura component.

Using Custom Labels in Apex

Custom labels can be accessed directly in Apex classes, making it easy to incorporate dynamic text into your backend logic.

Apex Code

// MyClass.cls
String labelName = Label.LabelName;

Explanation:

In Apex, we can simply reference the custom label using the “Label” global variable and the custom label’s API name.

Example: Label.Common_Error

Using Custom Labels in Flow

Even in declarative tools like Flow, custom labels can be utilized to provide dynamic text within your automation processes.

In the below example we can see how to add a Custom Label in a screen flow.

Add a Display Text in the Screen and select Labels in the Resource Picket on the right hand side. Then select the label that you want to show.

Output of the Custom Label while flow in execution.

You can read the Salesforce documentation on Custom Label here.

Conclusion

By leveraging custom labels in Salesforce development, developers can enhance the maintainability, scalability, and user experience of their applications. This guide has provided a comprehensive overview of how custom labels can be used across various areas of Salesforce development. Feel free to utilize the provided code snippets in your own projects and explore the endless possibilities that custom labels offer. Don’t forget to share your feedback or suggestions in the comments below, subscribe to our newsletter for more insightful content, and share this article with your fellow developers.

Feel free to try out the above approaches in your org.

Don’t forget to subscribe to our newsletter for more Salesforce development tips.

If you have any issues or suggestions, please feel free to use the comment section below.