Sort the Evidence
Group troubleshooting evidence into categories that make diagnosis and escalation easier.
Sort each detail into the evidence bucket it belongs to. Symptom Scope Environment Timeline Attempted fixes Error says 'mailbox unavailable' after clicking Send. Only finance users in the Dallas office have reported it. Issue appears on VPN but not on office wired network. First report came in at 8:42 after the email gateway update. User already restarted Outlook and re-entered credentials. The export button spins for one minute and returns 504. Chrome fails, but Edge succeeds on the same laptop. Three of seven invoice approvers are affected. The behavior started after the laptop resumed from sleep. Cleared browser cache and…
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