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Notify users of errors that occur in a future method


How can I notify users of errors that are encountered within a future method?

Outside of a future method I'd usually resort to ApexPages.addMessage(), but this isn't possible without the browser session.

For example, I might need the user to return to a specific contact record to address an invalid field (that was only identified after a callout).

Attribution to: Daniel Ballinger

Possible Suggestion/Solution #1

I found a Discussion Board post by Bob Buzzard that had some suggested solutions.

You can't do this as the @future request is disconnected from any browser session. There's a couple of alternatives I can think of:

  1. Post a chatter message to the user

  2. Send an email to the user

  3. Create a custom object/setting, add the message to that and write a visualforce page for the sidebar that displays the message

Attribution to: Daniel Ballinger

Possible Suggestion/Solution #2

You could have your Visualforce page poll periodically to see if the future action is complete, and then pull any error information out of a database object. This would require some Javascript that will call your controller's status check method after a reasonable amount of time.

Attribution to: Jeremy Nottingham
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