Warning: This will briefly dismount your databases. Perform this during a maintenance window or move active mailbox copies if in a Database Availability Group (DAG) . powershell Restart-Service MSExchangeIS Use code with caution. Copied to clipboard Critical Troubleshooting Checklist
If the EAC is throwing a generic error, use the Exchange Management Shell to get a more detailed error description. exchange 2019 product key invalid
if ($UpdatedServer.IsLicenseValid) Write-Host "SUCCESS: Product key accepted!" -ForegroundColor Green Write-Host "New Edition: $($UpdatedServer.Edition)" -ForegroundColor Green Write-Host "New Product ID: $($UpdatedServer.ProductID)" -ForegroundColor Green Warning: This will briefly dismount your databases
: To finalize the activation and update the license status in the EAC, you must restart the Microsoft Exchange Information Store service: Restart-Service MSExchangeIS Common Reasons for Failure you must either:
If the edition shown does not match the key you have, you must either: