Offline Considerations

The Salesforce Field Service mobile app is heavily optimized for offline use. These optimizations are enabled by our complete understanding of how the built-in features are implemented, including code, data, and metadata relationships. The app contains or loads the information it needs for built-in features to perform well, online and offline. See Offline Priming in the Field Service Mobile App in Salesforce Help for more details.

The Field Service mobile app doesn’t, and can’t, have this same level of knowledge about your custom features built with Lightning web components. Instead, the app analyzes your custom objects, page layouts, components, and other metadata, and then loads the data and metadata it thinks you need. To improve the quality of this analysis, and thus the performance of your components, you must follow a number of guidelines when developing your Lightning web components.