If you're a HelpDesk representative who fields questions from users about using Google Apps, here are some resources to help you out.
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Call: x4357 (240.895.HELP)
HelpDesk Resources
Google Mail & Calendar Troubleshooting

Learn to:
  • Quickly resolve common issues with Gmail and Google Calendar
  • Use Google's online resources to troubleshoot issues
HelpDesk setup and training tips

(Help Center article)
Get tips on how to:
  • Set up your HelpDesk operations to support Google Apps
  • Train your support staff on troubleshooting Google Apps issues and submitting support tickets to Google