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Mobile and Offline Developer Guide

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Summer '26 (API version 67.0)

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Spring '23 (API version 57.0)

Mobile App Development with Lightning Web Components and LWC Offline

Create Mobile-Ready Components

Use Mobile Device Features in Mobile Apps

Offline Considerations and Limitations

Offline Environment Details

Use Salesforce Features While Offline

Development Tools and Processes

Understand the Mobile Development Cycle

Set Up Your Development Environment

Preview Components on Mobile

Validate Lightning Web Components for Offline Use

Develop Offline-Ready LWCs with the LWC Offline Test Harness

Test Harness Overview

Install the Test Harness App

Use the Test Harness App

Create a Quick Action with an LWC

Display and Run an LWC from a Quick Action

Debug Lightning Web Components

Debug Mobile Components

Customize the Offline Experience for the Salesforce Mobile App

Use MCP Tools for Mobile LWC and Offline Development (Beta)

Build Native Mobile Apps with Mobile Procode Skills

Quick Start Tutorials

Development Tools and Processes

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Develop Offline-Ready LWCs with the LWC Offline Test Harness

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Use the Test Harness App

Use the Test Harness App

Learn how to use the Test Harness to perform common testing and debugging actions.

Create a Quick Action with an LWC
Quick actions are an easy way to add and launch your Lightning web components. It’s simple to add them to the Test Harness app.
Display and Run an LWC from a Quick Action
During active development, use quick actions in the Test Harness app to launch and test your Lightning web components.