Additional Considerations for Apex in an Offline-Enabled Mobile App

If a quick action uses a wired Apex method, and that quick action is primed at app startup, then the Apex results data can be primed as well, and available offline. The LWC must be statically analyzable for priming to take place. Specifically, input parameters for the wire adapter must be analyzable. For example, if the input parameters are derived from page reference attributes, or from the output of another LDS wire that is also analyzable. See Validate Lightning Web Components for Offline Use for additional details about static analysis. Note that the Apex method will be invoked during priming, possibly many times, to prime results for all possible adapter input parameters.

Apex continuations are supported. However, because continuations tend to be longer running requests, we recommend providing feedback to the user while a continuation is active. Otherwise, they might go offline before a continuation completes, which results in an error.