Mobile Offline Developer Guide

Offline App Development with Lightning Web Components and LWC Offline
Considerations and Limitations
Offline Considerations
Use Salesforce Features While Offline
Development Tools and Processes
Set Up Your Development Environment
Validate Lightning Web Components for Offline Use
Develop Offline-Ready LWCs with the LWC Offline Test Harness
Prerequisites and Setup Considerations
Download and Install — Android
Download and Install — iOS
Use the Test Harness App
Debug Lightning Web Components
Customize the Offline Experience for the Salesforce Mobile App
Quick Start Tutorials
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Prerequisites and Setup Considerations

To fully use Test Harness, you need a working mobile development environment. If you haven’t set up your mobile development tools yet, see the following resources for guidance.

Salesforce DX Setup

Third-Party Developer Tools

Compatibility and Considerations

On Android devices, the Test Harness app is distributed as an APK that can be installed on emulators or physical devices.

Minimum SDK version: 27/8.1 Oreo

On iOS devices, the Test Harness app is distributed as an app that can be installed on simulators.

Minimum iOS version: iOS 14.0