Mobile and Offline Developer Guide
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Mobile App Development with Lightning Web Components and LWC Offline
Customize Salesforce mobile apps with features built with Lightning web components, and
deploy your customizations to mobile users. Create components and apps that work even when mobile
devices are offline while in the field. Optimize your features to handle low- and no-network
connectivity situations with grace.
LWC Offline is an advanced runtime environment for Lightning web components. Available only for mobile devices, it replaces the standard Lightning components runtime, and augments it with features designed specifically for mobile and offline use.
- Briefcase Builder lets you define advanced data priming strategies, customized for the objects and records that your users need access to while offline.
- A new priming engine preloads records when you prepare to go offline.
- A durable on-device cache holds primed records for offline access, including changes made while offline.
- Lightning Data Service (LDS) is enhanced to work seamlessly with primed records. While online, LDS uses the cache as a performance enhancer. While offline, LDS allows transparent access to existing, changed, and even new records.
There are many, many other changes that you (mostly) don’t need to worry about. The overall goal for LWC Offline is to let you develop Lightning web components that “just work” whether you’re online or offline.