Mobile and Offline Developer Guide

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
Debug Mobile Components
Customize the Offline Experience for the Salesforce Mobile App
Use MCP Tools for Mobile LWC and Offline Development (Beta)
Salesforce Mobile App Generation (Developer Preview)
Installation and Setup
Use the Generation Workflow
Test and Troubleshoot
Quick Start Tutorials
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Test and Troubleshoot

MAGE allows you to see and test your app in action through a virtual device simulator or emulator.

Test and Validate

  • The agent uses the CLI to open your app on a local iOS Simulator or Android Emulator.
  • The app streams logs, network requests, and error messages back to the AI agent. This enables "conversational debugging" where the agent analyzes live behavior and provides live feedback to suggest fixes.
  • After a feature is finished building, the agent asks: "Would you like to make changes? Or keep going?". You determine when a feature is complete.

Troubleshoot and Best Practices

  • When requesting an app, include as much detail as possible in your first prompt.
    • Bad example: "Make a mobile app."
    • Good example: "Generate an iOS app for field technicians by using the Mobile SDK. It must allow them to view their daily schedule and log service calls."
  • If you’re modifying the generated iOS code manually later, make sure that you add new files to the .xcodeproj file. The tool handles this automatically during generation to prevent "file not found" errors.
  • Make sure you set up your local simulators (Xcode/Android Studio) and run them before starting the generation process for the smoothest experience.