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Let's say I have a component c:Widget which is being displayed in some user's browser. c:Widget displays the contents a Widget__c record.

Let's say something causes the Widget__c record to update on the server.

Is it possible for the server to send a message to c:Widget, which I might be able to handle as an event?

In the less favourable alternative, is it possible to create a background process in c:Widget which will periodically poll the Widget__c record for updates?

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You've to return the data or some kind of indicator from the server, which can be handled in lightning component controller and display message accordingly.

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